I'm selling a new, unopened item. I'll include the original product description: It raises the toilet seat by about 4 cm with a simple placement. The material is polyurethane. Easy to attach and detach, so you can use it even if you live with family. The neutral design, without a dedicated design, makes it compatible with most domestic manufacturers' heated toilet seats. The exquisite flexibility ensures a secure fit on the toilet seat. Compatible with standard-sized toilets and heated toilet seats in Japan.