SMAI Rubber Hex Dumbbell Sets are made from top quality materials to withstand the daily pounding they receive during your fitness workout. This rubber coating reduces wear and tear to your space plus minimizes noise when you smash out dumbbell exercises. The dumbbells also feature hexagonal ends to ensure they don’t roll away. The SMAI Rubber Hex Dumbbell rubber heads are welded and attached with a locking pin - a feature cheaper designs will not have! Package Contains 1 x 22.5kg Dumbbell (Pair)1 x 25kg Dumbbell (Pair)1 x 27.5kg Dumbbell (Pair)1 x 30kg Dumbbell (Pair)Specifications - Solid steel handle with an ergonomic design – perfect grip size - Handle also zinc coated for durability and rust prevention - Heavy-duty rubber head - fixed with locking pin for added safety - Commercial grade - Variation +/- 5%Available in: 1kg, 2kg, 3kg, 4kg, 5kg, 6kg, 7kg, 8kg, 9kg, 10kg, 12.5kg, 15kg, 17.5kg, 20kg, 22.5kg, 25kg, 27.5kg, 30kg, 32.5kg, 35kg, 37.5kg, 40kg, 42.5kg, 45kg, 47.5kg, 50kg, 52.5kg, 55kg, 57.5kg, 60kg. Outer material: Rubber head, zinc plated handle - Inner material: Solid steel - Sold as pair (eg 1kg pair = 2 x 1kg dumbbells).