Opti Cast Iron Dumbbell Set - 20kg
704/0764£60.00
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About this product
Strengthen and tone your body with this 18-piece Opti Cast Dumbbell Set. With cast iron plates and a spinlock system, customise your workout from 0 to 20kg in an instant. Including rubber grips for stability, it's ideal for both beginners and experts. It's a full-on, full work out, at-home, gym.
The dumbbells are perfect to perform a range of exercises including hammer and bicep curls and tricep extensions to work on your upper arms and lateral, side and rear raises with shoulder presses to build stronger shoulders. Target your legs by adding weight to lunges or squats to increase your strength and enhance your balance.
Made of cast iron these weights are built to last and the rubber grips will make it comfortable for you to use for longer. Bar material: Steel.
About the product:
- Circular shape weights.
- Spinlock.
- Adjustable weights - can add and remove weights as desired.
- 18 pieces in this weight set.
Composition/Material:
- Latex free.
- Plate material: cast iron.
Weight:
- Bar weight 3.4kg.
- Maximum weight on a single dumbbell: 20kg.
- Total package weight 20kg.
Dimensions:
- Dumbbell handgrip length: 12.5cm.
- Size H16.3, W35, D16.3cm.
- Boxed size H36, W20, D9.5cm.
4.6
71 reviews
98%
Recommended this product
Customers Say
Cast iron dumbbell set praised for quality, adjustable weights, and compact design. Some note rough or thin handles and occasional loosening spin locks. Overall durable, easy to use, and good value.
An AI generated summary based on recent customer reviews
Each review is verified as authentic by our independent third party and we only publish reviews from customers or Argos Testers who have purchased or used the item. Customers are incentivised to submit product reviews as part of a prize draw.
Pretty good
Bought as a gift for someone, they are quite good, pretty much what I expected and the person I got them for was happy. The only slight issue was the handles are quite rough, I'd bought a similar set before and there was a plastic cover but the grip here is cut straight into the metal and as a result a small burr was present on one which was fixed easily enough but as I said a bit rough on the hands.
Rich, 35 - 44
Nice variable weights but handles are small
Bought these when they were on offer as my other set had becomes too light for me. The ability to vary the amount of weight on each bar is great as you don't need to immediately jump to a weight that you might not be ready for. One downside is that the handle is a lot smaller than on others like my previous pair so i've had to modify it by butting some grip-able material around the handle to both make it slip less and add some circumference - gym gloves would also work if you're more committed to weight lifting than I am.
Ian91, 25 - 34
Great
I really like them. The only downsides are that the coating peels a little bit, and the spin locks come a little bit loose sometimes so that I have to tighten them between sets.
Heather, 25 - 34
Push the iron
Weights are good quality. Bars and weights can be quickly interchanged. Cool black colour as well.
Jrewing, 55 - 64
Features
I bought these approx 6 months ago, on first use I had to use a set of mole grips and a hammer to do one of the the quick release nuts on as it was so hard. Since I managed this they have been used daily and are ok
Kev639, 65 or over
good
good product happy with it
ct
Great set
Sturdy kitchen. Very happy
Salski5, 45 - 54
Top notch
I bought this a couple of weeks ago and I have no complaints. Great grip. The plates are secured nicely so they don’t loosen and spin whilst using them. 5/5
Dyl0615, 25 - 34
Convenient and useful
I got these recently and they are exactly what I wanted; simple and easy to use with the options for different weight combinations. Convenient and seem durable.
AlexGeo
Rippin' n' tearin'
I did one pump and now I am more ripped than Arnold Schwarzenegger. What I am also now flexing is more Nectar points! Bosh!
Arnie, 35 - 44
Hello Craig,
The Opti Cast Iron Dumbbell Set - 20kg has sufficient weights to add 10kg per dumbbell if using both dumbbells, or you can add up to 20kg on one dumbbell.
Thanks for using Q&A
Hello Andrea.
Opti Cast Iron Dumbbell Set - 20kg:
To Get 10 kg (Closest Under)
Total weight = 9.7 kg
Use:
2 × 2.5 kg
2 × 1.25 kg
1 × 0.5 kg
= 8.0 kg plates + 1.7 kg bar = 9.7 kg
To Get ~10 kg (Closest Over)
Total weight = 10.2 kg
Use:
2 × 2.5 kg
2 × 1.25 kg
2 × 0.5 kg
= 8.5 kg plates + 1.7 kg bar = 10.2 kg
Thank you for using Q & A.
Hi, Ian W
I can advise that the bars on the Opti Cast Iron Dumbbell Set - 20kg weigh 1.7kg each.
Thanks for using Q&A.
Hello Amanda,
I can advise the following for the Opti Cast Iron Dumbbell Set - 20kg:
This is one inch.
Thanks for using Q & A.
The bars also weigh 1.7kg each, totalling the 3.4kg mentioned in the advert.
Hello Lou Lou,
I can advise the following for the Opti Cast Iron Dumbbell Set - 20kg:
They are designed to be used with the bar, but could be used individually if you are safe with them. They are 0.5, 1.25,2.5kgs and you get 4 of each.
Thanks for using Q & A.
Ive been using this set for a couple of years now. Its possible to fit most but not all of the provided weights onto one bar. If you leave off two of the 0.5 kg weights, you have a 17.5 kg dumbbell, but there is no safety margin if the locks work loose, which can happen. Its best to leave off all four 0.5 kg weights giving you a 16.5 kg max with one dumbbell. After using these for several months, I opted to get the add-on set of four 5kg weights so I could make two 20kg dumbells.
Hello There,
The Opti Cast Iron Dumbbell Set - 20kg has a maximum weight on a single dumbbell of 20 kilograms.
Thank you for using Q&A
Hello Kate,
I can confirm that this Opti Cast Iron Dumbbell Set - 20kg comes boxed in standard packaging and not a case.
Thank you for using Q&A
The 2 bars in total are 3.4kg, so 1 bar is 1.7kg. This makes the total weight for everything 20.4 kg.
Hello Zero gravity,
I can advise the following for the Opti Cast Iron Dumbbell Set - 20kg:
Box weight is around 24Kgs.
Thanks for using Q&A.
Hello Benjamin,
The supplier has advised the following for the Opti Cast Iron Dumbbell Set - 20kg:
“ The bars are 35cm long and the threaded section is 10cm either side. ”
Thanks for using Q&A.
Hello Spangletree,
The supplier has advised the following for the individual weights and the numbers of them in the Opti Cast Iron Dumbbell Set - 20kg:
0.5kg x 4
1.25kg x 4
2.5kg x 4
Thank you for using Q&A.
The small print
*Prices correct as displayed but are subject to change.
The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.