Comfortable Square Medical Seat Memory Foam Back Pain Prevention, Medical Square Seat is made of high quality German Memory Foam material by professionals and is designed to be used for multiple functions. Application:It distributes body mass evenly which reduces pressure on the spine reduces lumbar pain which can be used wherever you are. -- 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