It says "12", so I think it's for a small 12-inch bicycle. It has been stored in a bag in a storage shed at home. There are no noticeable stains, but please understand that this is a used item. Metal side stand, with coil spring. It may be simply packaged in recycled cardboard, etc. Please purchase only if you understand this. Returns are not accepted. We usually ship the item almost immediately. I am not familiar with this product, so please understand that I may not be able to answer your questions. The condition of the item is as shown in the photos. Thank you for looking.