This disc weight (28mm diameter) was developed by our coaches and design team. Weight training just got easier with these rubber-coated discs. The stainless steel collar makes loading and unloading the discs a snap. The coating will protect your floors from knocks. Robustness: Cast iron weight with an ultra-durable rubber coating 5-year warranty. Impact protection: The rubber coating protects your flooring and reduces noise. About the product:Circular shape weights. 1 piece set . Weight:Maximum weight that can be added to the barbell: 2.5kg. Maximum weight on a single dumbbell: 2.5kg. Total package weight 2.5kg. Dimensions:Size H4.5, W17.9, D25.3cm. General information:EAN: 3608419290271.