Secure fit and safety: The safety ratchet buckle and shoelace closure secure the foot in the skate and provide extra wrapping while in use. The shockproof, fully enclosed PP shell and improved brakes enhance overall safety. Durable, high-performance bearings: ABEC-11 bearings offer long service life, high temperature resistance, high strength and wear resistance for smoother, more reliable speed. Indoor/outdoor versatility: High-rebound wheels deliver a soft ride on any surface, making these skates suitable for indoor floors and outdoor pavement so you can reach top speeds anywhere. Speed inline skating design: The precise fit, high comfort and smooth handling make these inline skates ideal for speed skating and everyday use for children, beginners and advanced users. Use scenarios: - Kids commuting to practice or school on smooth indoor floors or outdoor paths. - Beginners practicing in an indoor rink, then enjoying outdoor sessions on pavement. - Fitness skating at a park or waterfront, maintaining speed and stability across surfaces.