YUERWOVER 4 Pack LED Bike Wheel Lights Car Tire Valve Stems Caps Bicycle Motorcycle Waterproof Tyre Spoke Flash Lights Cool Reflector Accessories for Kids Men Women with 10 Extra Batteries(Blue)

IMPROVE YOUR SAFETY: LED Flash Tire Wheel Valve Cap Light can Increases nighttime and bad weather visibility in all directions to make you and your loved ones safer, and bring more enjoyment to your drive.

WATERPROOF AND DURABLE: These pneumatic tire valves were totally made of premium plastic material, qualified, no toxic chemicals, no bad smell. No need to worry about cycling on rainy or snowy days. Quality construction built to last, so you can use it for a long time. But please do not immerse these cool bicycle tire lights in the water!

APPLICATION: Suitable for Schrader valve and Dunlop valve, cars, motorcycles, electric cars, bicycles. Not suit for Presta valve unless put adapter. When your wheel starts to move, it automatically flashes and forming an aperture of light which makes your car/motorcycle/bicycle look beautiful.

EASY TO INSTALL: No tools are needed, just a few seconds to install or remove. Installs on standard tire air stem valves of cars, motorcycles, or bicycles. Please unscrew the lamp before use and remove the middle insulation sheet. if it still not work, you need to put them on the valve stem and ride, it will emit a fascinating aura with the vibration of the tires.

PACKAGE INCLUDE: 4 Blue Super Cool bright Led Bike Wheel Tire Valve Lights, with 10 Extra Batteries. Compact size allows for quick and easy storage, It's the perfect present for kids, children, boys, girls, teenagers, adults of all ages on birthday, Christmas. Use it in bike/motorcycle/car parades, social rides, and more.