Posted 4 days ago

Opti Cast Iron Dumbbell Set - 20kg - Free Click & Collect

£3.95 ·
Shared by
Frank30uk Super Poster
Joined in 2010

About this deal

Want to be somebody? Strengthen and tone your upper and lower body with this Opti Dumbbell and Barbell Set. Ideal for both beginners and experts. The spinlock system means the weight increments can be changed easily as you progress. Arms, chest, shoulders, legs, this set targets it all. It's a full-on, full work out gym experience in the comfort and privacy of your own home.

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.


  • Plate material: cast iron.


  • Bar weight 1.35kg.
  • Maximum weight on a single dumbbell: 20kg.
  • Total package weight 20kg.


  • Dumbell handgrip length: 13.3cm.
  • Size H17.4, W35.5, D17.4cm.
  • Boxed size H21, W37, D13cm.
Argos More details at

Community Updates
Edited by a community support team member, 4 days ago
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  1. Jean54's avatar
    10kg each or 20kgs each ?
    Mohammad_Ausman's avatar
    Total package weight 20kg. So 10kg each.
  2. tonypop's avatar
    Decent fit money, just watch weights do t fall off as they get loose
    Blueboy1878's avatar
    Put a metal jubillee clip on each end thats what i did
  3. Kingsworth's avatar
    Damn, 10kg each? Ok for a 10 year old girl I guess!
    vegeta89's avatar
    You know those things at the end? Think they're called spinlocks and you can take them off to add weight! Unbelievable technology!
  4. the_prince's avatar
    I got these a few years ago. Very sturdy materials, but they get loose so quickly, just with normal movements. I have to tighten them after each set.
    rs_tigerblade's avatar
    I have them too. I learnt a trick (from YouTube I think) if you spin the plate nearest the screw in the opposite direction when you’re tightening it holds for much longer!
  5. Glowingpumpkin's avatar
    These are great quality, I've also bought the additional 5KG discs.

    Really pleased, not had the issue of them getting loose that others have mentioned.
  6. alphamike's avatar
    heat added
  7. mcav's avatar
    That's a decent set for the price. An ideal set for High Intensity Interval Training and similar workout routines.
    hukdbargain's avatar
    Depends on the individual.
  8. cycleman's avatar
    Just bought to top up the previous set, pretty good for the money, helped me gain muscle back after a serious accident.
  9. surferontheblock's avatar
    They feel really well made and look beautiful in person.

    I got them because I got sick of trying to look at the second hand market and seeing mostly sand filled vinyl plates and dumbbells.
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