Tailbone Pain Relief Cushion: compatible with hemorrhoids, fissures, joint pain, tailbone pain, sciatica, herniated discs, a fractured coccyx, anal fissures, vaginal surgery, postpartum or lower back pain and more. Scientific Design: Central hole with contoured edges to effectively raise you from the seat surface. The pillow slopes gradually from back to front so that your thighs transition naturally off the seat. With U cutouts at the front and back of the coccyx cushion elevate your comcompatible witht. Elevated Support and Comcompatible witht: Durable and supportive to support better posture and help avoid friction in delicate areas. Two size chair pillows compatible with option: STANDARD size 15.5*17.5*5.5inches suggests compatible with less than 160 pounds people, and LARGE size 17.5*18.5*5.5inches, suggested compatible with over 160pounds people. Carry handle and hook: As the chair cushion, it can be used in the office, at home, outdoors, traveling or wheelchair, etc, the handle and hook are necessary compatible with easily carrying along You can take the donut pillow by the handle, hang up the donut pillow on your backpack, suitcase or wheelchair.