Inline Skates for Kids, Adjustable Inline Skates with Light up Wheels for Girls Boys, Roller Skates Outdoor and Indoor (size medium) Medium fits foot length 7.5-9.5in M(7.5inch-9.5inch). Just push a botton to adjust and the beginner inline skates will be the exact fit as feet. 【Safty】Triple Protections:powerful velcro, outdoor inline skates buckle and shoe rope to provide ankle support. The right foot is the initial braking, you can adjust according to your preferences, so that you have no fear in high-speed sliding. 【Excellent Performance】The all-aluminum frame structure provides the greatest security, and the ABEC-7 bearings allows you to glide more smoothly. Children's inline skates allows you to enjoy the pleasure of fast sliding without worrying about accidents. 【Cool and Comfort】The inline skates use polyester fabric mesh, breathable and comfortable. The soft roller skates inner lining can better adapts to the user’s feet, allowing you to slide more comfortably and coolly