I received these as a gift, but I have no use for them, so I'm selling them. I tried to wash them in water, intending to have my child wear them, but they didn't want to, so they are unused. I'll also include a pair for adults as a bonus. I threw away the tag that indicated the size. I measured them, and they are 12cm. I believe they will fit children who wear sizes 12-15cm. Please understand that this is a rough measurement. 20251010