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 2 Kit pairs with the PowerBlock Sport EXP Stage 1 Adjustable Dumbbells. The Stage 2 Kit will let you expand the PowerBlock Sport EXP Stage 1 set from 50lb to 70lb each dumbell. Need more weight? Get the PowerBlock Sport EXP Stage 3 Set to grow your dumbells from 70lb each dumbell to 90lb each dumbell.
