Product Description PowerBlocks are the easiest adjustable dumbbells to expand, so as your strength grows, they can too. Designed for a versatile workout, the PowerBlock Sport EXP Stage 3 pairs with the Sport EXP Stage 1 & 2 set. This kit lets you expand the PowerBlock Sport EXP Stage 1 & 2 set 70lbs to 90lbs. Versatile Workouts Expands PowerBlock Sport EXP Stage 1 & 2 set from 32kgs (70lbs) to 40.8kgs (90lbs) per hand Adds 6 additional increments from 32kgs (70lbs) to 40.8kgs (90lbs) per set One set replaces 28 pairs of dumbbells
