Comfortmax Shoulder & Arm Abduction System. A lightweight, universally-sized alternative to traditional shoulder abductors. This unique design (CK-800) includes telescoping arms, eliminating the need to keep several sizes on hand. A durable, removable wedge allows shoulder positioning at 0, 15, 30, 60, and 90 degrees, while the strapping system allows the CK-800 to be worn on the left or right arm with minimal adjustment. Nice unused comfortmax CK-800 in original bag with instructional CD. Will ship fast and with care!