•Outgrow no more! Adjust up to 4 sizes at the twist of a lever. Medium (11J-2) •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. Description Bring the joy of skating to your child with our best roller skates for beginners. The unique Tractor Skate design is loved by parents and children because of how easy it is to stand up and get rolling. These beginner roller skates feature a low center of gravity for more balance and safety, which means more skating and less falling! Fast growing feet? No worries! Adjustable roller skates for kids can grow up to 4 sizes with the twist of a lever. They feature high quality urethane wheels for smooth rolling indoors and outdoors. These beginner roller skates fit true to your child’s shoe size. Medium fits size J11-2. Roller Derby is America's Skate Company since 1936. Weight: 4.5 Pounds Closure Type: Cam-Lever Buckle Features: Indoor/Outdoor Use, Padded Tongue, Adjustable Size, Padded Collar Liner Material: Polyester Number of Wheels: 4 Wheel Material: Polyurethane Brake System: Heel Brakes Wheel durometer: 87A Shoe Width: Medium Wheel Color: Pink Wheel Diameter: 78 Millimeter Material: Boot: Nylon, Plastic, Polyester