These are dinosaur-patterned potty training pants. My child wore them once to sleep, but there were no accidents, so they are in clean condition. The size is not written, so I've forgotten it, but they are on the larger side with plenty of room, so they seem to be a size that can be worn by children around 4, 5, or 6 years old. I will also include a photo comparing them with Uniqlo pants size 110 for reference. *Uniqlo pants are not included.