Fun for the whole family! These skates fit sizes J7 - J13, making them perfect for kids ages 4-7 who want to get an early start rollerskating. Once they graduate from these they can move into our adjustable size kids skates. Despite their small size the Zippy skates are made of durable nylon and riveted together. Besides the adjustable sizing they also have a wheel locking mechanism which allows kids to gradually get used to skating.