Feature: 1. There are 3 sizes to choose from, easy-to-adjust button design, press and hold the button and stretch the toe to adjust the size of the shoes. 2. Self-generating wheel without battery, ensure the safety of children, the beautiful lights can easily attract kid's attention. 3. Composed of high-quality PP material, mesh cloth, PVC leather and EPE foam, it can bring great comfort to playing. 4. Reinforced aluminum frame, ABEC-7 double-shielded precision bearings and smooth PU wheels provide a comfortable playing experience. 5. Shoelaces, hook and loop straps, high-strength buckle triple protection measures. Specification: Item Type: Roller Skates Material: Shoe Shell Material: PP/PE wear-resistant material Shoes Upper: Breathable mesh Wheel Frame: two-piece aluminum bracket Wheels: PU64mm/70mm Weight: Approx. 2208g/77.9oz Installation: No need to install, use directly Package List: 2 x Roller Skates 2 x Small Hex Wrench 2 x Small Screw 2 x Pulley Long Screw 1 x Instruction