These are very warm gloves with a furry interior. As shown in the photo, they are 15cm from fingertip to wrist, but the inside is covered with dense fur, so I think they would fit a child around the age of starting elementary school. I'm sorry, I'm not sure about the size. I received these as a gift, and I don't know what kind of leather they are, but they are very warm. As you can see in the photo, there is a slight fraying on the left wrist. Thank you.