Thermoskin Patella Tracking Stabilizer Large 14.5 15.75 Toe Immobilizer DETACHABLE FULL ARMS * 20 8975 DETACHABLE FULL ARMS * 20 With Elevating Leg Rests * Weighs under 36 lbs The ROHO© SELECT Cushion Cover is a textile enclosure intended to protect the cushion * Replacement Covers for the following Cushions: * QUADTRO SELECT© HIGH PROFILE© Cushion * QUADTRO SELECT© MID PROFILE© Cushion * QUADTRO SELECT© LOW PROFILE© Cushion * CONTOUR SELECT© Cushion * This is available in Heavy Duty Cushion Cover a fluid resistant textile enclosure * 20 x20 * For Quadtro Select High Profile Cushion * Warranty: 6 Month Limited Warranty Large * Has a fully adjustable internal buttress which ensures correct positioning and control of patella movement * Allows vertical tracking of the patella during vertical flexion extension * Assists in the treatment of patella problems including instability pain and subluxation (looseness)