I purchased these from a Korean children's clothing shop somewhere, but I forgot about them and they're already too small. I think they're probably around 11-12 centimeters. They didn't fit my child, who is now 13 centimeters. I forgot the purchase price, but I think it was around 1500-2000 yen. I think they would be good for keeping babies warm when going out in a baby carrier or stroller, for children who can't walk yet. They are made of a soft material, so I will send them via Yu-Packet Mini.