Elastic Knee Stabilizer Beige X Large 16.5 18 Foam Mattresses Actual chair size 18 x 16 7136 Actual chair size 18 x 16 * Combines the stability of a contoured foam base with the therapeutic care for which Roho Dry Flotation cushions are known * Contoured foam base is designed to allow for increased stability for transfers and provides exceptional positioning of the pelvis and lower extremities * Includes: Nexus SPIRIT cushion 2 way stretch cover hand inflation pump repair kit and operating instructions * HCPCS Suggested: E2622 RIGHT BRACE * SIZE: LARGE * MEASUREMENTS: 7 X Large * Fits knee circum 5 18 (measurement taken just under the knee cap while knee is slightly bent) * Elastic Support for Prevention Treatment & Rehabilitation of the knee * Thermoskin elastics can expand contract and stretch and are made of a high grade durable material that permits a full range of movement and are comfortable to wear during a range of activities * Anatomically designed the elastic support will comfortably contour to the shape of your knee * It provides even compression and support to weakened and injured knees * It has side stabilizers to provide increased medial and laterial support