The everlast dumbbell sets are built to last. Whether youaposre looking to build more muscle or tone up you can do both with this amazing set. The bars include knurled polyurethane grips. Includes spinlocks which are also easy to tighten and then remove when itaposs time to add more weight. 15kg set includes 4 x 2.5kg, 4 x 1.25kg, 2 x dumbbell bars 4 x spinlocks maximum bar weight 30kg per bar easy to split for easy storage total weight 15kg 20kg set includes 4 x 2.5kg, 8 x 1.25kg, 2 x dumbbell bars 4 x spinlocks maximum bar weight 30kg per bar easy to split for easy storage total weight 15kg 25kg set includes 8 x 2.5kg, 4 x 1.25kg, 2 x dumbbell bars 4 x spinlocks maximum bar weight 30kg per bar easy to split for easy storage total weight 25kg 30kg set includes 8 x 2.5kg, 8 x 1.25kg, 2 x plastic dumbbell bars 4 x spinlocks maximum bar weight 30kg per bar easy to split for easy storage total weight 30kg