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Opti Cast Iron Dumbbell Set - 20kg 620/2431

Rating 4.782308657465496 out of 5
Read reviews (1594)
Opti Cast Iron Dumbbell Set - 20kg
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  • £60.00

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About this product

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.

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.