U-shape Design: Orthopedic seat cushion with Acsergery ergonomically designed provide support at the main pressure points, wrap the buttocks and relieve tailbones pressure. Relief the pain for sciatic, tailbone, back, hip, disc herniation, hemorrhoids, piriformis, lumbosacral arthritis, surgical recovery . Constant Temperature Memory Foam: seat cushion is made of 100% high density slow rebound memory foam. Softness and hardness less affected by temperature. No deformation and collapse. Prolongtheservicelifeoftailbone relief cushion . Correct Your Sitting Posture: The contoured design of cushion conforms to the body curve design and promotes blood flow, provides ideal support for your hips and back, which help you develop a correct sitting posture. Reduce the pressure of pelvis and relax your legs . Wide Application: Compact design, 15.77.96.3inches. with Acsergery an-ti slip rubber on the bottom, orthopedic memory foam support cushion suitable for office, home, plane, car, train and wheelchair. Fit for teachers, driver, students, disabled people, pregnant women, office workers, etc. Helps reduce discomfort in the coccyx, back and hips . Considerate Detail Design: Elegant velvet cover is soft and comfortable. The cover with Acsergery zip is removable and machine washable. The portable side handle is easy to carry. Protect your tailbone with Acsergery pain relief cushion .