Outgrow No More: Adjust up to 4 sizes at the twist of a lever. (Size 7-11 toddler) Learn to skate with the rugged and fun "tractor skate" design Strong and supportive boot with extra-cushy padded liner for comfort and control Low center of gravity for more balance and safety means more skating and less falling Indoor/outdoor wheels made of quality urethane. Grippy and smooth on most surfaces