☝️ Tailbone and Back Support: The cushion feature a coccyx cutout or design that alleviates pressure on the tailbone and promotes coccyx pain relief. ☝️ Versatil Coccyx Cushion: The back support for office chair cushion is suitable for various situations, such as office chair, gaming desk, wheelchair use, driving in a car, and providing relief from conditions like sciatica and hemorrhoids.