For those who have knee pain or other issues and find it difficult to sit deeply on the toilet, this is a raised toilet seat (10cm type) that makes it easier to stand up and sit down by raising the seat. Easy, one-touch installation with a click. Can be washed immediately if dirty. Purchased about five years ago to make it easier to use the toilet without putting a strain on the legs. Installed and removed after about 3 days, and then stored at home. It's clean as it was used only a few times. It has been disinfected with alcohol, but it has been stored at home and there is no warranty or box, so it will be shipped in a recycled box. Although it is a beautiful item, it is a used item, so please consider it if you understand.