Kensington Premium Cool Gel Seat Cushion Black K55807WWFor extra comfort while sitting at a desk for long periods of time, this ergonomic seat cushion from Kensington is designed to help with a healthy posture, improve circulation and relieve spinal pressure. The cooling fabric has a cool gel core, which will decrease body temperature and it features a unique U shaped cut out to take pressure off the coccyx and help to support sciatica relief. The cushion features a machine washable cover, an anti slip