【Recommended by a Chiropractic Clinic Director】 Donut Cushion Premium Memory Foam Model for Hemorrhoids, Back Pain, Postpartum, Posture Support, Car Use, Front-Sloped Design, High Resilience (Firm) Certified Safety Standards (Gray (Standard Size)) Used once and stored in the closet. Product Details (Amazon) https://amzn.asia/d/3CzrQ7L Product Description 【Chiropractic Clinic Director Recommended｜Posture Support Donut Cushion】 Supervised by a current chiropractic clinic director. For long hours of desk work, working from home, postpartum care, hemorrhoids, and lower back pain. Supports natural posture and reduces stress on the lower back and buttocks. 【High-Quality 100% Premium Memory Foam Used】 The cushion interior uses high-resilience urethane that evenly distributes body pressure. With an exquisite resilience that is neither too soft nor sinks in too much, it keeps a comfortable sitting experience for a long time. 【Front-Sloped Design for Comfortable Thighs】 The special structure with a slope on the front reduces pressure on the thighs. It encourages a natural posture with an upright pelvis, making it less tiring even during long hours of concentrated work. 【Adjusted to Moderate Firmness｜Repeated Testing at Our Own Factory】 The firmness is adjusted in 5% increments, and the best balance is adjusted after multiple staff members have sat and compared. It reduces the problems of conventional donut cushions, such as "too hard" and "vibrating on the floor." 【Safe Quality Inspection｜Safe for Babies】 Quality inspections by specialized institutions are conducted on all parts. The breathable cover is washable and can always be used hygienically. A safe design that the whole family can use.