One great feature of these PowerBlocks is that once you're ready to move beyond 50 pounds, you don't have to go out and buy an entirely new set of adjustable dumbbells. The expansion kits allow you to ...
SKIP AHEAD How I picked the best dumbbells | Best fixed dumbbells | Best adjustable dumbbells | How ... Weight range: 10 lbs to 50 lbs | Material: rubber-encased ends; solid cast iron core ...