Aren't I lucky, as I found just the workout that ticks all those boxes. This standing arm workout doesn't have any repeats (i.e. all exercises are different), uses only two dumbbells and can be done ...
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 ...