He'll improve his skating skills with the Roller Derby® Boys’ ION 7.2 Adjustable Inline Skates. Designed with your growing child in mind, these skates adjust up to 4 sizes giving him a perfect fit as he grows. The soft padded liner, power strap and buckle deliver a comfortable and secure fit for hours of fun. Features polyurethane wheels for an easy, smooth ride. FEATURES: Adjustable inline skates Expands to four sizes Simple to use push button Aluminum frame is stable and durable Polyurethane wheels roll smooth and quiet Gold 7 Speed bearings Deluxe padded liner for lasting comfort Velcro® power strap with buckle and laces Manufacturer's warranty: 90 days SIZE CHART: Small: 11-1 Medium: 2-5