The Power Block U70 Stage 1 adjustable dumbbells are part of the Urethane Series & replace 15 pairs of dumbbells or 279kg (615lbs) of free weights. They offer a weight range of 2
- 18kgs (4.4
- 39.7lbs) per hand & are supplied as a pair. In addition, the set is expandable later to 27kg (59.5lbs) per hand with the U70 Stage II add on kit, & again to 32kg (70.5lbs) per hand with the U70 Stage III add on kit.