The PowerBlock Pro EXP 50 Dumbbell set is a stage 1 set that can be expanded to 70lbs and then again to 90lbs (** expansion kits sold separately). These compact dumbbells are designed to be easier to control and balance and can go from 5-50 lbs, which replaces the need for 16 pairs of standard fixed-weight dumbbells. They feature a patented selector pin system and are equipped with two 2.5 lb chrome weights per handle at no extra charge to micro-load weight adjustments in 2.5 lb increments. A new autolock feature automatically locks the micro-loaded adder weights into place when put into the weight stack.

The Pro Series dumbbells also feature an “open handle” design. The benefit of the open handle design over the closed handle design is that you have a lot more room for you hand, which is especially great if you’ve got larger hands. Secondly, and just as important, is that the wrist supports don’t get in the way of your wrists/forearms on exercises like biceps curls where your wrists need to flex.