BCP 4 Pairs Different Color Bike Bicycle Cycling Car Wheel Tire Wire Tyre LED Flash Light Lamp More energy-efficient with light & motion sensors. Easy to install. Just remove your tire valve cap and screw these on instead. Please remove the paper in the battery case before install. Rust resistant and waterproof. Each LED light contains 3 x AG10 batteries. Package include 5 pairs different color LED lights: red, blue, green, colorful + 8 pcs black valve covers.