1Premium Memory Foam: Our office chair seat cushion is made of memory foam, soft and firm, uses your own body heat to adapt to your curves, ergonomic U shaped hollow design for superior comfort, effectively support the coccyx, relieve the hip pressure caused by sitting for long periods. 2Adjustable Strap: Equipped with adjustable strap, the seat cushion can be easily secured to any chair or seat, preventing slipping or movement. Enjoy a customized comfortable experience wherever you are. 3Soft and Supportive: All parts of the seat cushion are safe for human health with no additives. The premium memory foam of this seat cushion quickly rebounds and returns to its original shape after each use and can be used to add height to any seat. 4Supports Tailbone and Relieves Pressure: Ergonomically designed seat cushion provides maximum support and comfort while reducing pressure on the coccyx and tailbone and promotes healthy posture. 5Amazing Gift: A amazing birthday or holiday gift choice for family, friends, workmates, grandparent and teenagers. Relieve sciatica, arthritis, lower back, buttocks, spine, butt, coccyx pain. Conveniently sized, take our seat pad with you anywhere you go. Use it in your home and office, in the car, or on an airplane so you'll always sit comfortably.