3-pack Robot Socks for toddlers/small children-Anti Slip Soles 3-pack Robot Socks for toddlers/small children-Anti Slip Soles (1 pair Black +1 pair Brown+1 pair Dark Green = 3 pack) Comfortably fits from shoes size 6 to 10 (around 2 to 4 years old). Or comfortably fits by measuring the longest part of the foot (referred to heel to toe length 5.2 inch to 6.3 inch). Machine washable. Excellent quality and Cute style!! Good for gift giving and daily wearing. There are more color options, please see other pages.(Click " Coco Group for Kids")