This is a low-rebound cushion from IKSTAR. It provides stable sitting comfort, so your buttocks won't hurt even after sitting for long periods. I used it for several months while teleworking. After that, it was stored in a closet at home. There are no smokers or pets. IKSTAR Cushion Low Rebound Seat Cushion Office Chair Car Seat Cushion RoHS Standard Clear Comfortable Sitting Driving Easy Cover Washable