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PROIRON 20kg/30kg Adjustable Dumbbells Weights set for Men Women, Cast Iron Dumbell Barbells set, Strength Training Equipment Home Gym Fitness, Hand Weights, Free Weights Bar Bell for Weight Lifting

4.5 out of 5 stars 13,751 ratings

£79.99
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Colour Name: a-20kg black
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Purchase options and add-ons

Brand PROIRON
Colour a-20kg black
Item weight 20 Kilograms
Material Cast Iron
Special feature Adjustable

About this item

  • Lifetime durability from high quality cast iron
  • In the box: 2 solid steel handles, 4*0.5KG, 4*1.25KG, 4*2.5 KG plates, 4 collars and an extension bar. This combine doubles the weight options compare to the set without the 0.5KG plate
  • Anti-loose rubber ring on the collar
  • Knurled all-steel handle for grip and safety
  • The extension bar transforms two dumbbells into a barbell

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Product information

Technical Details

Color ‎a-20kg black
Size ‎20 kg
Style ‎20 Kilograms
Height ‎14.7 centimetres
Item display length ‎37.4 centimetres
Weight ‎20.5 Kilograms
Item display width ‎18.4 centimetres
Material type ‎Cast Iron
Number of pieces ‎19
Skill level ‎Professionals
Features ‎Adjustable
Batteries included? ‎No
Brand ‎PROIRON
Department ‎womens
Manufacturer ‎Shanxi Regent Works Inc.
Item model number ‎PRKCAS20K
Product Dimensions ‎37.9 x 19.51 x 19.51 cm; 20 kg
ASIN ‎B01C9YD3I0

Additional Information

Date First Available 27 Feb. 2016
Customer Reviews
4.5 out of 5 stars 13,751 ratings

4.5 out of 5 stars
Best Sellers Rank 2,486 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
5 in Fitness Weights
51 in Dumbbells
Is discontinued by manufacturer No

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PROIRON 20kg/30kg Adjustable Dumbbells Weights set for Men Women, Cast Iron Dumbell Barbells set, Strength Training Equipment Home Gym Fitness, Hand Weights, Free Weights Bar Bell for Weight Lifting


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Product description

PROIRON Cast Iron Standard Weight Plate

PROIRON Premium Solid Weight Plates are available in a variety of weight levels to allow users to customize their workouts. Solid cast iron construction ensures years of use Try targeting specific muscle groups and strengthening and toning your entire body.

PROIRON Cast Iron Weight Plates are sold in the following combinations, allowing you to increase the weight of your dumbbell by bit.

1.25kg x 4pcs

4pcs x 2.5kg

5kg x 2pcs

10kg x 2pcs

All materials are strictly selected, free of phthalates and lead, which is harmful to human body. PROIRON guarantees healthy exercise.


From the brand


Product Description

PROIRON 20kg Cast Iron Adjustable Weights Dumbbell Set with Knurled All-Steel Handles Changed into Barbell for Bodybuilding Fitness Home Gym

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

  • PROIRON has been a global fitness equipment brand since 1997.
  • We have core modern factory in the world's important steel industry base.
  • In past 23 years of development, we have been focusing on offering professional weightlifting equipment.
  • PROIRON export to the United States, Germany, the United Kingdom, and France. Major buyers come from Fortune 500 companies.

We have own manufacturing bases, rigid quality control team for strict standard

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Focus on every production details

  • Molded of molten iron
  • Select superior iron resources

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Focus on every production details

  • Hand finishing
  • Carefully polished, good quality at your fingertips

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Focus on every production details

  • Hammertone finish
  • Stainless and durable

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Focus on every production details

  • Cast Iron Adjustable Dumbbell expert
  • Weight Options in KG:2.5 / 4 / 5 / 6.5 / 7.5 / 9 / 10 / 20

Why is the cast iron dumbbell better?

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Cast Iron VS Plastic filled Cement

  • Cast iron Dumbbell, much durable
  • Dumbbells filled with cement, easy to break and leak

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Cast Iron VS Plastic filled Cement

  • Solid steel handle, Prevent cracking
  • Hollow handle, easy to break

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Cast Iron VS Plastic filled Cement

  • Steel spinlock, fasten and strong
  • Plastic nut, Deformation and damage

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Cast Iron VS Plastic filled Cement

  • Compact and efficient. Cast iron Dumbbell, efficient training
  • Dumbbells filled with cement, large and bulky, less easy to use

Characteristic

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

All-steel handle

Knurled all-steel handle for grip and safety

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Longer and stronger connector

The chromed steel connector can convert dumbbells into a barbell, for workout different muscles

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Anti-loose O-rings

Four unique anti-loose O-rings help you with safe workout

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Iron spin lock

Unlike the plastic lock, our iron spin lock can lock the weight plate firmly without deformation or damage.

Please note which side of the lock is close to dumbbell and note the right rotation direction

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

What you can get from package

  • You can start from beginner to the next level easily by choosing adjustable cast iron dumbbell. Sold in sets:
  • Set of weights(0.5kg*4, 1.25kg*4, 2.5kg*4), Lock*4, handle*2, Dumbbell Connector*1

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Versatile and Practical

  • Our adjustable dumbbell set with connector can help you alternate quickly and easily between dumbbell and barbell.
  • This is great for strength training and enable you to expand your workout for peak performance.

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Improves Total Body Fitness

  • Practicing with PROIRON Adjustable Dumbbells, you will see significant improvements with
  • your cardiovascular health
  • your muscular strength
  • your muscular endurance

PROIRON 20kg Cast Iron Adjustable Dumbbell Set

Unleash Your Full Potential

  • Increase muscle mass
  • Encourage cardiovascular health
  • Target specific muscles, pain free
  • Offer Inexpensive & Effective exercises

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Customer Reviews
4.6 out of 5 stars 2,905
4.7 out of 5 stars 3,261
4.5 out of 5 stars 2,442
4.7 out of 5 stars 20,716
4.0 out of 5 stars 1,118
4.6 out of 5 stars 807
Price £25.99 £62.99 £10.99 £18.99 £62.99 £49.99
Brand PROIRON PROIRON PROIRON PROIRON PROIRON PROIRON
Feature Flat Bottom+Wide Handle Beautiful hammertone finish extra thick for 3 times stretch macaron color, anti rolling design adjustable weight 2cm extra thick
Material high quality cast iron 100% solid cast iron natural latex solid cast iron+neoprene High-quality reinforced nylon EVA Foam
Recommend reason core training and strength exercises Great addition to 20kg dumbbell set assistance to pull-ups, ring dips, push up, stretching Build up strength, power & endurance Comfortable + Breathable Floor Protection
adjustable cast iron dumbbell weights set men women

A tip of the iceberg for PROIRON items

Please go to PROIRON store to find more decent quality products

Customer reviews

4.5 out of 5 stars
13,751 global ratings

Review this product

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Customers say

Customers find these adjustable dumbbells to be solid cast iron weights that are easy to use and assemble, particularly suitable for beginners and home workouts. The weights are compact for easy storage, and customers appreciate their functionality, with one noting they work well on all settings. The bar size receives mixed feedback - while some say it fits their needs perfectly, others mention it's a little short for some exercises.

AI-generated from the text of customer reviews

687 customers mention ‘Quality’676 positive11 negative

Customers praise the quality of these dumbbells, noting their thick iron construction and solid weights and polls.

"...You can buy more expensive sets but iron is very robust and if dropped doesn’t deform." Read more

"Great value for the price. The dumbbells feel strong and sturdy, and the grip is spot on. I went for the 30kg set, and it's perfect for my needs...." Read more

"Brought for my son , the weights are solid and appear well made , good for starting out and enables him to cover lots of different exercises , the..." Read more

"Weight, workout effectiveness, easy to assemble, build quality" Read more

302 customers mention ‘Value for money’280 positive22 negative

Customers find these adjustable dumbbells to be a great value, offering good quality for the price.

"Great value for the price. The dumbbells feel strong and sturdy, and the grip is spot on. I went for the 30kg set, and it's perfect for my needs...." Read more

"...or feel right , as dumbbells these are solid and quality at a decent price range ." Read more

"...Well worth the money." Read more

"...Everything is as advertised/described. For the price it's a marvelous kit ! Yes they may be cheaper ones , but i did not find anything IRON !..." Read more

185 customers mention ‘Weight capacity’149 positive36 negative

Customers appreciate the dumbbell set's weight capacity, noting that the levels are suitable for beginners and the compact design makes them easy to store.

"Weight, workout effectiveness, easy to assemble, build quality" Read more

"...For me they are ideal, but lighter fixed weights would allow those HIIT kinds of exercises more easily...." Read more

"...Packaging for this item was really good, very compact and well protected, the box it came in is deceptively heavy (due to the small size) so much so..." Read more

"These weights are ideal, I'm a returnee to fitness and there are varied discs in addition to being able to extend from dumbbells into a barbell...." Read more

173 customers mention ‘Ease of assembly’167 positive6 negative

Customers find the dumbbell set easy to use and assemble, particularly handy for beginners, with one customer noting it's simple to add or remove weights.

"Weight, workout effectiveness, easy to assemble, build quality" Read more

"Simple to put together and change from hand dumbbells to one bar weights, great quality and my son is very happy!" Read more

"...Everything was there, very cleverly packed. The bar bell is easily constructed and the weights attach easily and firmly...." Read more

"...the quality, they look good and genuinely feel really good, assembly is really easy so swapping between different weights is a doddle, my only..." Read more

128 customers mention ‘Weights’116 positive12 negative

Customers find these dumbbells to be versatile and suitable for home workouts, particularly for beginners, with a good selection of weights for various exercises.

"Lovely set of weights with nice option with bar extender...." Read more

"...for my son , the weights are solid and appear well made , good for starting out and enables him to cover lots of different exercises , the only..." Read more

"Simple to put together and change from hand dumbbells to one bar weights, great quality and my son is very happy!" Read more

"...Even the hand-bars alone, without any discs, are a good way to start, adding weights as you progress...." Read more

117 customers mention ‘Functionality’99 positive18 negative

Customers find that the dumbbells work well for their intended purpose, with one customer mentioning they use them daily in their home gym.

"...air-conditioning is safe when they open up, I think these are life-savers...." Read more

"Bought this set back in 2019, it worked really well as 2 dumbbells...." Read more

"The weights are nice looking and work as they should...." Read more

"...come on and off really smoothly and it is actually a real pleasure to train with these dumbells! Great job suppliers!..." Read more

101 customers mention ‘Home workout’101 positive0 negative

Customers find these dumbbells excellent for home workouts and suitable for all fitness levels, noting they can be used for many exercises.

"...and appear well made , good for starting out and enables him to cover lots of different exercises , the only reason this is a four star and not a..." Read more

"Weight, workout effectiveness, easy to assemble, build quality" Read more

"...These are suitable for traditional weight-lifting movements, but you can still find plenty of variety of those movements available...." Read more

"...The dumbbells are great for home exercise and everything can be easily stowed away...." Read more

106 customers mention ‘Bar size’45 positive61 negative

Customers have mixed opinions about the bar size of the dumbbell set, with some finding it fits their needs perfectly while others mention it seems a little short.

"...only reason this is a four star and not a five star is the extension to make a barbell , just doesn't seem long enough or feel right , as..." Read more

"Lovely set of weights with nice option with bar extender...." Read more

"...I just make sure they are tight before each set. The barbell is not that long, so may not be suitable for serious weight lifters...." Read more

"...quality is good, everything is metal so it will last ages and takes less space...." Read more

30Kg dumbells solid for the price
5 out of 5 stars
30Kg dumbells solid for the price
Great value for the price. The dumbbells feel strong and sturdy, and the grip is spot on. I went for the 30kg set, and it's perfect for my needs. The only downside is that the rubber on the bar is pretty useless, but overall, a solid purchase.
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Top reviews from United Kingdom

  • Reviewed in the United Kingdom on 14 March 2025
    Colour Name: b-30kg blackVerified Purchase
    Lovely set of weights with nice option with bar extender. Was a little concerned as took longer to deliver than ‘next day’ but is 30kg so quite heavy. Better finish than York cast iron plates. You can buy more expensive sets but iron is very robust and if dropped doesn’t deform.
  • Reviewed in the United Kingdom on 18 March 2025
    Colour Name: b-30kg blackVerified Purchase
    Great value for the price. The dumbbells feel strong and sturdy, and the grip is spot on. I went for the 30kg set, and it's perfect for my needs. The only downside is that the rubber on the bar is pretty useless, but overall, a solid purchase.
    Customer image
    5.0 out of 5 stars
    30Kg dumbells solid for the price

    Reviewed in the United Kingdom on 18 March 2025
    Great value for the price. The dumbbells feel strong and sturdy, and the grip is spot on. I went for the 30kg set, and it's perfect for my needs. The only downside is that the rubber on the bar is pretty useless, but overall, a solid purchase.
    Images in this review
    Customer image
  • Reviewed in the United Kingdom on 15 November 2024
    Colour Name: a-20kg blackVerified Purchase
    Brought for my son , the weights are solid and appear well made , good for starting out and enables him to cover lots of different exercises , the only reason this is a four star and not a five star is the extension to make a barbell , just doesn't seem long enough or feel right , as dumbbells these are solid and quality at a decent price range .
    One person found this helpful
    Report
  • Reviewed in the United Kingdom on 13 January 2025
    Colour Name: a-20kg blackVerified Purchase
    Weight, workout effectiveness, easy to assemble, build quality
    One person found this helpful
    Report
  • Reviewed in the United Kingdom on 13 May 2020
    Colour Name: a-20kg blackVerified Purchase
    If you have used weights in a gym, you will find these weights perfectly familiar. The advantage is that you can vary the amount of weight on each short bar and even use the connecting tube in either of two ways to make them into one barbell. After a few weeks of lockdown, I intend to start with them at about 6kg each and slowly build up through the summer. Only really strong people who want much heavier weights will find them insufficient. They arrive in a small very solid box which is difficult to carry, both for the courier and then yourself, so you need to exercise caution.
    If you want to do exercises that require you to swing the weights repeatedly in a lengthwise direction or to twist them while swinging them, then you would probably be better off with fixed dumbbells rather than variable ones like these because with these the ring weights are held in place with a large nut that would work loose with those movements. These are suitable for traditional weight-lifting movements, but you can still find plenty of variety of those movements available. For me they are ideal, but lighter fixed weights would allow those HIIT kinds of exercises more easily.
    With gyms closed down, and then the issue of whether air-conditioning is safe when they open up, I think these are life-savers. My previous set lasted decades, but I kept them in the garage and they eventually rusted away. I expect these to outlive me by a long time.
    Also, they were delivered very promptly, ahead of the expected delivery date, by a very strong man who warned me from his van about how heavy the box was - very sensible. I am very glad to have them.
    5 people found this helpful
    Report
  • Reviewed in the United Kingdom on 29 December 2024
    Colour Name: a-20kg blackVerified Purchase
    Simple to put together and change from hand dumbbells to one bar weights, great quality and my son is very happy!
  • Reviewed in the United Kingdom on 8 February 2022
    Colour Name: a-20kg blackVerified Purchase
    Needed to do something about the belly and 'love-handles' that appeared over the past 2 years of lockdown! Was thinking of joining a local gym but... you know how that goes. So, decided to invest in these and build up towards my home gym.

    They were delivered in sturdy cardboard box which can be used to store them when not in use. But, for me, these will always be out on the floor. Otherwise, out of site, out of mind!

    I've had concrete-filled, plastic ones before but this time wanted cast iron ones which hopefully won't go rusty over time. The bars are chrome plated whilst the weights are finished in a hammered effect, dark-grey paint. Looks professionally finished and of high quality. Other reviewers commented that the screw-locks loosen during use, but I haven't had that problem.

    Really like the extension tube which converts the two dumbbells into one barbell. Not sure if I would trust loading the full 20kg with the extension bar, though. As well as bent-over-rows, bench presses and fore-arm curls it's possible to place the bar-bell on the floor, slip your toes under it and knock out a few sit-ups.

    The different weights are ideal for a beginner. Even the hand-bars alone, without any discs, are a good way to start, adding weights as you progress. I've used these daily for the past week and was ready to buy another set. There's always a 'however'. However, the price went up by £10 right after I got my first set. So, just waiting for the price to drop, or until I find another seller with a similar product and better offer.

    I will be buying another set, a folding bench, and a Straight / EZ Curl bar-bell, all available from the same manufacturer.
    110 people found this helpful
    Report

Top reviews from other countries

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  • AlexiBit
    5.0 out of 5 stars Old school Rocky-Hanteln, sehr gut
    Reviewed in Germany on 19 July 2024
    Colour Name: a-20kg blackVerified Purchase
    Verwende sie jetzt über ein Jahr und finde sie sehr gut. Null Probleme, Manschetten halten bestens. Einziges Manko ist vielleicht die leichte Unhandlichkeit, wenn man sie mit Zwischenstück verlängern will (man muss die Hantel dabei hochhalten während den Drehen). Aber das macht man eh nur ein Mal bis man seine Wunschhantel fertig hat. Ansonsten voll zufrieden.
    Report
  • Ana B.
    5.0 out of 5 stars Mancuernas de calidad con peso ajustable.
    Reviewed in Spain on 7 October 2018
    Colour Name: a-20kg blackVerified Purchase
    Producto de muy alta calidad, para poder ser usado en casa.
    No te defraudaran ya que hasta el más mínimo detalle está pensado.
    Customer image
    Ana B.
    5.0 out of 5 stars
    Mancuernas de calidad con peso ajustable.

    Reviewed in Spain on 7 October 2018
    Producto de muy alta calidad, para poder ser usado en casa.
    No te defraudaran ya que hasta el más mínimo detalle está pensado.
    Images in this review
    Customer image
  • Hopoe
    5.0 out of 5 stars Great quality
    Reviewed in the United States on 5 January 2025
    Colour Name: a-20kg blackVerified Purchase
    The weights are perfect for our home gym. The quality is amazing for the price.
    Customer image
    Hopoe
    5.0 out of 5 stars
    Great quality

    Reviewed in the United States on 5 January 2025
    The weights are perfect for our home gym. The quality is amazing for the price.
    Images in this review
    Customer image
  • Karin Lindblad
    5.0 out of 5 stars Bra kvalitet!
    Reviewed in Sweden on 7 March 2025
    Colour Name: a-20kg blackVerified Purchase
    Bra kvalitet och lätt att ändra vikt.
    Customer image
    Karin Lindblad
    5.0 out of 5 stars
    Bra kvalitet!

    Reviewed in Sweden on 7 March 2025
    Bra kvalitet och lätt att ändra vikt.
    Images in this review
    Customer imageCustomer image
  • GAREL
    5.0 out of 5 stars Ce qui est nécessaire pour les exercises de musculation.
    Reviewed in France on 12 November 2024
    Colour Name: a-20kg blackVerified Purchase
    Cet ensemble bien pensé permet de progresser par l'augmentation de poids suivant la progression.
    Customer image
    GAREL
    5.0 out of 5 stars
    Ce qui est nécessaire pour les exercises de musculation.

    Reviewed in France on 12 November 2024
    Cet ensemble bien pensé permet de progresser par l'augmentation de poids suivant la progression.
    Images in this review
    Customer imageCustomer image