2 PACKS BICYCLE WATERPROOF5 LED BIKE RIM LIGHTS FOR MTB WHEEL TIRE VALVE SPOKESPECIFICATIONSProduct: Valve Cap LightMaterial: Plastic + LED lightsLed Light: 5 Led Flash LightUsage: Car, Motorcycle, BicycleMode: 32 ModesWeight: approx. 41gBattery: AG10 Powered by 3 AG10 batteries for each one (Included)Each Size: about 2.95*0.55 inch/7.5*1.4cmAttention: The connector fit for UK / USA (not compatible with the FR)FEATURES (1)5 LED light flashing32 Changes are available. It will look awesome on your bike by amazing flash.(2) Decorative light. Install on bicycle valve stem. Also suitable for bike, motorcycle.(3) Easy to install, just simply screw on your valve stem, only three seconds, you will have a surprise.(4) Protecting the air faucet from blocking and waterproof, give your car carefully protection.(5) Automatic flash: it wont shine at the light enough places , at dark night under the intense vibration .It will lights automatically when riding PACKAGE 2 x 5-LED Wheel Light (Batteries included)