Introducing the CAP Adjustable Dumbbell, Quick Select 5-50 Pound, Single that features the adjustable weight adjustment system that is safe, quick, and easy to use. The adjustable weight adjustment system allows you to rapidly switch from one exercise to the next. Simply turn the handle right or left in 5-pound increments, pull up, and start your workout. The unique dial system combines 10 sets of weights into one. The handles have a natural orientation for a comfortable, secure lifting position. The weight plate's sleek, prevents the dumbbells from rolling away, warding off hazards. Say goodbye to 10 sets of dumbbells and hello to the new adjustable dumbbell.