I purchased this Polgar Olga Plus on Mercari in 2019. It can be used in three ways: as a hip seat alone, a baby carrier, or a hip seat carrier. I mainly used the hip seat, and there is some staining on the seat (it didn't come out in the wash). Please see the last image for details. I was told it had been used about 5 times when I purchased it. The sleeping seat is unused, and we haven't used it either. It shows signs of use, and this is a used item stored by a private individual. Please refrain from purchasing if you are sensitive to this.