Can be used as a comfort cushion, donut cushion or coccyx cushion Molded to meet the needs of the user Super soft knit cover is washable and removable Will fit in a car, scooter, wheelchair, office chair, etc Hook and loop carrying strap for greater portability This is the only cushion you need. The cushion can be a donut cushion, coccyx cushion or comfort cushion. This soft molded cushion is ergonomically designed to meet the needs of the user while being able to be used in cars, seats, cushions, scooters, etc. Hook and loop carrying strap makes transporting the cushion easy during travel.