Description: The Cool and Delicate Hot Wheels Are Composed of Dynamic Sensing Circuits and Lighting Circuits. The LED Light is Brightly Lit, Independent Circuit Design. No Need to Change or Connect the Circuit of the Car Itself, Tighten It on the Valve of the Car Wheel. At Night, As Long As the Car Starts to Move, It Will Emit a Charming Aura Along with the Vibration of the Tires. At the Same Time, It Has a Waterproof Function, Called a Hot Wheels. Lights With Motion Sensors Turn On When You Drive, Go Off When You Stop. Features: -When you stop it will switch off to save battery power -Make your Car/Motorbike/Bike looks beautiful -Increases nighttime and bad weather visibility for safety -Bring more enjoyment to your drive Specifications: Color: Red / Blue / Green/ Multicolored Material: Alloy, PVC Power Supply: 3 Sections AG10 Button Batteries Package Included: 1/4/8pcs Car Bike Wheel LED Tire Valve Cap Light Notice: 1. Actual Color May Be Slightly Different From The Image Due To Different Monitor And Light Effect. 2. Please Allow 1-3cm Deviation Due To Manual Measurement.