Thank you for viewing. This is a Richell potty training seat. I purchased it new from Amazon. I have used it for 4 years for my daughter and son. It has been cleaned and disinfected with alcohol at home. I researched various potty training seats and decided to buy this one, and it's one of the best childcare items I've purchased. What's great about it is that you can put your hand in from the back! You can wipe their bottoms clean. When not in use, I just placed it directly on the toilet floor. If you clean your toilet regularly, that shouldn't be a problem. I've seen various potty training seats at my friends' houses, but they all took up a lot of space. This potty training seat was great because it didn't cause any stress when adults used the toilet. Simple is best! 【Important】 The drawback of this product, like other potty training seats, is that it's cold to sit on in the winter. At our house, we attached a 100-yen shop toilet seat cover with cellophane tape. Therefore, there are marks from the cellophane tape remaining, as shown in the third photo. Please be aware of this. If you have any questions about the product, please feel free to comment.