Product Details Size: [M] Color: Pink Brand: GuiPai Material: Alloy Steel UPC: 704505398234 [Product Details] Materials: Lining: Sponge, Support: Aluminum Alloy, Wheels: PU, Bearings: ABEC-8. Made with environmentally friendly materials, soft sponge and mesh for a comfortable and breathable fit. It is very durable and lightweight, so you can use it with confidence. The aluminum bracket ensures smoothness while withstanding a lot of pressure. You can concentrate on free line skating with more peace of mind. Excellent breathability provides a comfortable fit for long hours of use. [Four-Layer Protection for Users & All-Light-Up Wheels & Right-Foot Brake] Four-layer protection system, with standard safety buckles, Velcro, and shoelaces, and thick cushioning protects the ankles from painful blisters and impacts, maintaining safety and comfort. The wheels light up when they spin, no charging required ★ They look cool and flashy when skating! Designed with 8 light-up wheels. According to exercise habits, the left foot supports the weight, and the right foot has an independent brake, making it easy and safe to use. [One-Touch 4-Step Size Adjustment] Size: M (34.0-37.0): Inner dimensions 21.5-23.5cm, adjustable in 4 steps within the corresponding size, 0.5cm increments. No tools required, you can change the size in 4 steps with the PUSH button, adjustable, suitable for children in their growth period! [Stability, Breathability, Lightness, Quietness, and Durability] Uses shock absorbers to prevent vibration and provide stability. Adopts ABEC-7 bearings, which have the highest precision in the practical range, for a single-row four-skate structure, ensuring high safety, excellent breathability, and a comfortable, lightweight fit. Excellent durability, can be used for long periods of time. [Holiday Gift and Birthday Present] Inline skates are loved by children of all ages and are a lot of fun. They can also be used as a means of transportation. Anyone can enjoy them. You can easily do aerobic exercise in wide places such as plazas and parks.