LUXEMOME Ergonomic Design Fabric Cover PU Therapeutic Seat Cushions 100% High Density Foam Imported High density foam give you new compress feeling. Size:41x41x8cm/16x16x3 inch Novelty design shape the beauty hip line, push-up effect for the bottom. The middle hole give you ventilate way. Prevent hemorrhoids, also pain free. You can use it on beach, car seat, chair, floor, home, hotel, outdoor, yoga, etc. With zippered, washable, removable velour cover.