※ Unused item, only inspected. Reference price online: ¥3980 Top Highlights Material: Memory foam Color: Brown (extra thick) Size: Normal Brand: NEXUS SPITZE Shape: Oval Features: Removable cover [Recommended by a chiropractic clinic director | Posture support round cushion] Supervised by a current chiropractic clinic director. For long hours of desk work, telecommuting, postpartum care, hemorrhoids, and lower back pain. Supports natural posture and reduces stress on the lower back and buttocks. [Uses high-quality 100% premium memory foam] The cushion interior uses low-resilience urethane that evenly distributes body pressure. With a perfect balance of not being too soft and not sinking in too much, it maintains a comfortable sitting experience for a long time. [Forward-sloping 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 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 reduces the problems of conventional round cushions, such as being "too hard" or "resonating on the floor." [Quality inspection certified | Safe for babies] Quality inspections are conducted on all parts by specialized institutions. The breathable cover is washable and can always be used hygienically. A safe design that the whole family can use. [About the smell upon opening] Due to the characteristics of the urethane material, a smell may be noticeable immediately after opening, but it will naturally reduce if left to air out in a well-ventilated place for 1-2 days. The smell is not harmful to the human body. [Regarding color transfer] Prolonged contact with leather, wood, or resin products may cause color transfer due to the non-slip material on the back of the cushion. It is recommended to use it with a mat or similar.