I recently purchased this on Amazon. It's new and unused. I opened it to take photos and check the contents. I bought it for my family, but we ended up not needing it. [Recommended by a Chiropractic Clinic Director] Round Cushion Premium Memory Foam Model for Hemorrhoids, Back Pain, Postpartum, Posture Support, Car Use, Front-Sloped Design, High Rebound (Firm) Donut Cushion, Safety Standards Cleared (Navy, Regular Size) Supports natural posture and reduces stress on the lower back and buttocks. [High-Quality 100% Premium Memory Foam Used] The cushion interior uses low-rebound urethane that evenly distributes body pressure. With a perfect balance of softness and support, it provides a comfortable sitting experience for extended periods. [Forward-Sloped Design for Comfortable Thighs] The special front-sloped structure reduces pressure on the thighs. It encourages a natural posture with an upright pelvis, making it less tiring even during long hours of focused work. [Adjusted to the Right Firmness | Repeated Testing at Our Own Factory] The firmness is adjusted in 5% increments, and the best balance is achieved after multiple staff members have sat on it and compared. It alleviates the common problems of traditional round cushions, such as being "too hard" or "feeling the floor." [Quality Tested for Peace of Mind | Safe for Babies] Quality inspections are conducted on all parts by a specialized institution. The breathable cover is washable, allowing for hygienic use at all times. A safe design that the whole family can use.