Features: High-quality material: Made of high-quality material, wear-resistant, strong grip, good compression resistance, durable. Shock-absorbing wheel: high-quality bearings are used, without jamming, and the rotation speed is fast, making high-speed rotation safer and sliding more comfortable. Working principle: By installing the bearing and the magnetic cores, the magnetic cores in the wheel and the coils in the wicks, the magnetic field line movement is generated when the wheel rotates, so that the LED in the wheel is brightened and emits light. High Brightness: Designed for outdoor use, the light is bright but not dim. Reduce friction and increase speed. A wheel designed for the intermediate player looking for good speed, grip and durability on a variety of surfaces. Suitable for fitness, slalom, recreational skating. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: PU Size: 72mm/76mm/80mm Package List: 1 x Luminous Roller Skating Wheel