Stamina X 50 lb. Versa-Bell Dumbbell Convenient Weight Adjustments: Lets you increase or decrease the dumbbell's weight, in 5-pound increments, with the simple turn of a knob. Single unit; not a pair Easy-View Window display shows weight change as you turn the dial Adjustable from 10 to 50 lbs. (4.5 kg to 22.7 kg).Weight Settings: 10, 15, 20, 25, 30, 35, 40, 45, 50 Sturdy 10 lb. handle bar (1) with 8 weight plates (5 lbs. each) Durable, heavy-duty nylon weight tray, Easy-to-use dial to change weight, Painted steel weight plates