Car tire Bicycle tire LED Decorative flashing light Wheel valve cap lamp Cool and delicate hot wheels are composed of dynamic detection circuits and lighting circuits. > The LED light is brightly illuminated and independent circuit design. No need to change or connect the circuit of the car itself, clamp it on the car wheel valve. At night, as long as the car starts to move, it will emit a will be charming with the Vibration of the Tires. At the same time, it has a waterproof function, called Hot Wheels. Lights with motion sensors turn on when you drive, turn off when you stop. Features: When you stop, it turns off to save battery Make your car or motorcycle or bicycle look beautiful Increase visibility at night and in bad weather for safety Bring more fun to your driving p> Specifications: Color: Red or Blue or Green or Multicolour Material: Alloy, PVC Power: 3 Section AG10 Button Cell Batteries Package Included: 1 or 4 or 8pcs LED Car Bike Wheel Tire Valve Cap Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2. Please allow 1-3cm measuring deviation due to manual measurement. (1 inch = 2.54 cm)