Pack big weight into small space with the PowerBlock® Sport 50 lb. Adjustable Dumbbell Set. The advanced design reduces clutter and substitutes nine pairs of dumbbells in the space of one. Featuring a patented selector pin for easy adjustment, the set adapts like a selector stack machine you'd see at the gym. With a weight range of 10 to 50 lbs., this compact set allows you to sculpt muscles from the comfort of your home.