Use for upper extremity exercise in the treatment of CVAs, stiff shoulders and neurological difficulties. Increases shoulder, elbow and upper arm ROM, endurance and strength. Double pivot system is adjustable, allowing a greater arc of exercise circumference. Portable and made of lacquered birch plywood. Contoured, padded 30.5cm (12") arm skate has high-quality ball-bearing pivot hardware, Velcro fastening and a removable moulded hand cone. Features include a double revolving design on a 39-46cm (15½" x 18") wood base with three nonslip feet.