Material: PVC Color: Blue, Green, Pink, Red, Yellow Size: 5.8cm/2.3inch Battery: 3 x AG10 button battery Fits for: Bike, Motorcycle, Car Feature: Waterproof, shockproof Easy to install no special wires, can be easily installed and removed Silver body with ultra bright, long life-span led lights Automatically flash light up creating a solid disk of light when your wheels start to move Package Content: 1 x Bike Wheel Lights Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.