Used only once or twice (^^) I used these when going out in a stroller or carrying my baby before they started walking, so they haven't touched the ground (^^) Although I haven't used them often, there are some small pills due to home storage m(._.)m Please understand that I may have overlooked minor scratches or stains due to my amateur inspection m(._.)m I'm not sure about the size, but they fit my baby who is currently 11.7cm perfectly, so I estimate they are H&M size 16/18 ★ 3-9M ★★ 11.1cm I look forward to your purchase if you understand that these are used items (^^)