I used it for about half a year after purchasing it and then stored it. There is no sagging or noticeable dirt. Please refrain from purchasing if you are sensitive about used items. A cushion specifically for gaming chairs. The three-dimensional U-shaped design disperses body pressure and supports you without compressing your buttocks. The firm molded urethane cushion also reduces the feeling of bottoming out. You can customize your gaming chair for a more comfortable seating experience. Gaming Chair Specific Cushion Gaming chairs have a shape where both sides of the seat rise, making it difficult to place general seat cushions or chair cushions as they interfere. This gaming seat cushion is designed with a special size that takes into account the unique shape of gaming chairs. It is a cushion that fits many gaming chairs without any issues.