・ Purchased 4 years ago ・ New, unused I bought this for my child's potty training, but I didn't use it. Please check the size in the third photo. I will pack it with bubble wrap and ship it in a paper bag or a vinyl shipping bag. Although it is new and unused, it has been stored at home, so I would appreciate it if only those who understand this would purchase it. Thomas & Friends design potty training seat, inner diameter 20-23cm, made of polypropylene. - Brand: Thomas & Friends - Design: With characters - Compatible toilet seat size: Inner diameter 20-23cm - Compatible toilet seat size: Length 24cm or more - Material: Polypropylene Thank you for looking.