Description: Memory Foam Memory Foam Memory Back Rest with High Quality German Manufacturing Technology Premium Fabric Cover Washable Use: Spine comfort and evenly distribute pressure to vertebrae and back muscle pain prevention Ideal for office chair, car chair and wheelchair -- WARNING: Before you buy the product, please check the seller name first which is (HT Medical ) if not, do not buy the product, if you purchase we are not responsible for the quality of the product you received, please note