Children's five-finger socks, a set of 3 pairs in black. According to the measurements in the second photo, they are about 14cm, but they are for ages 6-9, size 18-21cm. My child wore these in their 2nd and 3rd years of elementary school. I bought a set of 5 pairs, but only used 2, so I'm selling the rest. They are mesh, so they are recommended for preventing stuffiness. Thank you for looking.