• Shell: synthetic material • Liner: synthetic and textile materials • Aluminum skid, rubber wheels • Wheel size: 70 mm • Wheel hardness: 82A; • Bearings: ABEC 7 • Extensive fastening system: • lacing, QUICK-LOCK buckle and Velcro strap • 2 large loops for easy putting on of the skate; Brake on the right skate. • Maximum user weight: 100kg • Adjustable size 31 - 34 (19.5 - 20.5 cm)