Anti Thrust Gel Foam Cushion Soft Base 18 (W) x 16 (D) Disinfectants Hard Surface * Water resistant nylon pouch attaches 85180 * Water resistant nylon pouch attaches under seat for added privacy and security of personal items Supports the AMA Guides Measures Joint Range of Motion Spinal subluxation and Cervical Flexion and Extension Multiple Data Storage and Viewing The Acumar Digital Inclinometer Suite provides accuracy repeatability and objective documentation of range of motion measurements This Cushion prevents residents from sliding out of the wheelchair and simultanously prevents pressure sores * Available with or without firm hammock relief base