Designed with advance gel cell technology, this cushion provides exceptional comfort and support for your back. The cushion contours to the natural curve of your lower back, alleviating discomfort and promoting proper posture while seated. The black polyester cover is removable and washable, and the cushion has a slip-resistant back. Equipped with adjustable straps, it is able to be attached to most chairs, wheelchairs and car seats for comfort wherever you are.