The Roller Derby Hornet adjustable inline skates offer the convenience of adjustability while remaining a good beginner to intermediate skate. The comfort foam with reinforced ankle support with power straps offers comfort, stability, and a good fit. The aluminum pro style frame is more sturdy than other plastic frames allowing for a better stride. ABEC 7 carbon steel bearings will offer a good glide as well. Features: Bearings: ABEC 7 Carbon Steel bearing. Lining Material: Athletic comfort fit with deluxe comfort foam, Skate Type: Kids, Wheel Brand: Roller Derby, Wheel Configuration: 64mm - 64mm - 64mm - 64mm, Wheel Configuration: 70mm - 70mm - 70mm - 70mm, Wheel Durometer: 82A, Bearing Type: ABEC 7, Bearing Size: 608 - Standard, Frame Material: Aluminum, Closure System: Laces & Strap, Special Features: Adjustable, Bearing Grade: Recreational, Ventilation: Yes, Number of Wheels: 4, Maximum Wheel Size: 70mm, Skill Range: Beginner - Advanced Intermediate, Model Year: 2013, Product ID: 215347