Feature: Motion activated LED Light for Bike, Motorcycle, Car, Truck Wheels Motion Activated LED lights packaged 2 in 1. Lights & Valve connectors. Can be easily installed it on a wide range of vehicles such bikes, motorbikes, cars , Truck etc. The light makes the wheel amazingly beautiful and announces your presence for safety at night. Please don't forget to remove the isolation paper from the battery in order to activate battery Notes: Attention : 1. When you receive the Bike Wheel Tire Light for the first time, you must unscrew the back cover and remove the insulation sheet in the middle of the battery or the middle of the battery and the spring, otherwise it is a short circuit phenomenon and not light! 2. pay attention to the battery anyway, don't install it backwards!! 3. This lamp has a condition that it is induced by vibration, and it shine when there is vibration.Under relatively static conditions, this lamp is also not lit. Color: Green Material: PVC+Plastic Package Contents: 4 x Wheel Tire Light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.