If your goal is to gain strength develop power reshape your body or prevent injuries by strengthening the stabilising muscles around your joints then the power block u50 club set is for you offers a weight range from 4 5 22 5kgs per hand with nine 4 5kgs jumps which replaces 9 pairs of dumbbells key features of the power block u50 club set weight range of 4 5 22 5kgs 10 50lbs per hand replaces 9 pairs of dumbbells urethane coated weight plates offer the ultimate in smooth performanc