TushGuard Seat Cushion for Office Chair Memory Foam Non-Slip Desk Seat Cushion Back, Coccyx, Sciatica, Tailbone Pain Relief Butt Pillow for Office Chair, Car, Wheelchair, BlackBrand: TushGuard Color: Black Features: Memory FoamMade of pure memory foam that adapts to your curves, provides superior comfort and helps with muscle fatigue. The premium memory foam never loses its shape and slowly rebounds to original shape after use. Friendly DesignAnti slip bottom prevents need for frequent readjustment. Built in handle for easy portability. Removable cover makes cleaning easy. Additional mid cover fabric to protect core foam.