Anti-roll shape weights. Fixed weights - the weights attached to the bars cannot be removed or added to. 2 pieces in this weight set. About the product: Anti-roll shape weights. Fixed weights - the weights attached to the bars cannot be removed or added to. 2 pieces in this weight set. Composition/Material: Bar material: cast iron. Weight: Maximum weight that can be added to the barbell: 2.2kg. Maximum weight on a single dumbbell: 15kg. Total package weight 30kg. Dimensions: Dumbell handgrip length: 10cm. Size H13.5, W34, D15.5cm. Boxed size H15, W35, D16cm.