New 4pcs Luminous Wheels LED Flashing Wheels Suitable for Inline Skating Shoes 72mm 76mm 80mm 90A Hardness PU Material

Description:Product composition: flash wheel + magnetic coreFlashing wheel: with luminous characteristics and braking performance, it is a very popular wheel in roller skating, loved by players!Suitable for: freestyle skating / slalom skating / roller skates / street brushesThe light-up wheel does not need to be installed with batteries. It needs a magnetic core installed in the middle of the wheel. When it rotates, the internal magnetic field generates energy and glows. When the wheel is not moving, it will not glow.Kind Reminder1. Each luminous wheel requires two bearings to secure the internal magnetic core. When there is friction during ice skating, the wheels will light up! This product does not include bearings!2. This product is a physical photo, and there may be color differences on different display devices such as computers and mobile phones. Please refer to the actual product! Due to material limitations, the wheels may turn yellow, and different measurement methods may result in slight errors. This is normal, but it won't affect usage!3.Before you make a purchase, please confirm the size you require. You can purchase according to the original size of the roller skates!Package List: 4pcs x Flashing wheel