Designed for durability and quick weight adjustments, the BowFlex SelectTech 52 Dumbbells set a new standard in strength training. Durable, premium metal components, a locking system that keeps weights in place, and a comfortable, non-slip grip will keep you reaching for these dumbbells for years to come. Quick adjustment dials give you the power to easily switch between weights, from 5 to 52.2 pounds. And the all-in-one, space-saving design replaces 15 sets of weights with one.