New, Unused Although new, this item is old and has been stored in a closet. The cover is clean, but there is some discoloration on the urethane inside. There are stitch marks on the corners of the urethane that do not disappear even after being left for a while. I believe the softness and resilience when pressed by hand are the same as when it was purchased. Product: Low-rebound urethane cushion Size: Approximately 39cm x 39cm x 5.5cm thick It has a depression in the shape of the buttocks, and supports the weight with the entire buttocks, so it can be expected to distribute body pressure. Also, it can be expected to stabilize the sitting position. Among low-rebound urethane cushions, it was a popular product despite its high price. I have heard that there were quite a few repeat customers. This cushion is suitable for those who sit for long periods of time. Shipping: I work on weekdays, so I will ship on weekends. (I may ship on weekdays if I get home early)