CanDo Twist n Bend Hand Wrist Exerciser Black Built Up Handles 5 inch caster wheels are Style:Pair (Left & Right) 5 inch caster wheels are great for indoor and outdoor use * Deluxe hand brake can be pressed when needed or pushed down to lock rollator into place * Removable hinged padded backrest can be folded up or down * Easily folds for transport or storage * Handle height: 31 35 * Inside hand grip width: 17 * Seat depth: 12 * Seat width: 12 * Unit dimensions: 23 any profession and task where proper posture and good body mechanics are important * Ideal for mild low back pain strains or sprains * Beneficial when used in conjunction with a rehabilitation program * All materials are hypoallergenic * Lightweight portable exerciser designed to strengthen hand wrist and shoulder muscles * Promotes coordintaion increases range of motion and aids in neuromuscular and balance training * Exercisers maintain a consistent bar diameter of 2 and length of 12