Wheelchair Mobile Arm Support provides optimal support for the arm and positions the hand appropriately. Helps maintain lateral body support. Adjustable elbow angle permits the alternation between flexion and extension that is so important to contracture control. In reimbursement langauge, this device is called a SEWHO (shoulder-elbow-wrist-hand orthosis). Two models are available. Choose the level armrest, or, if edema is present, choose the elevated arm model. High-density foam covered with easy-care, spray-and-wipe nylon. Attaches to any wheelchair with a unique ",sandwich", clamp. Left and Right models are not interchangeable. Black.