Waterproof LED Bike Front Tail USB Rechargeable Kids Balance Bike

Installed in the center of the wheel, won't affect the center of of the Features:
No speed is required, will constant when on.
Separate design, easier to install, and suitable for mountain bikes and 's .
Waterproof design, you can usually ride in rainy days.
Used to install 's bike wheel hubs for safe driving at night.
Easy to install and remove. Automatically color changing. Specifications:
Diameter not exceeding 30mm is available
Material: PC
Capacity: 300mAh Li- (USB rechargeable)
Installed Diameter: Less than 30mm (Especially recommend for kids bike)
Work : 8-12 hours
Item size: 82 * 82mm / 3.2 * 3.2in
Package size: 86 * 86 * 37mm / 3.4 * 3.4 * 1.5in
Package weight: 70g / 2.5ounce Note:
No is felt after 5 seconds of on, and the turns off intelligently.
In the process of use, if the do not feel for 35-40 seconds, the will go out automatically, and the will turn on intelligently when it vibrates again. Packing List:
1 * Wheel
1 * Set of Rubber Gasket
1 * USB Cable

Returns Accepted for this item if it's within 30 Days