WYSIWASH 9-pack Jacketed Caplets High Quality Aluminum Alloy Body: The Valve Wheel Lights is made from high quality aircraft grand aluminum alloy, which is scratch and waterproof resistant, fine craftmanship Single Induction Vibration Function: Actived by motion sensor, this kind of valve stem light is a single induction vibration type, lights are extra bright when the wheel is turning, also, it is Energy efficient, light turns on when moving; off when stopped Fit for All Kinds of Bikes: With the brightest bike valve light, you will be a safety drivers in the dark riding, it is help to improve safety with increased visibility from cars, makes your bike more shine and durable, fit for Presta & Schrader valve, it can be mounted on the bicycle, motorcycle and car in seconds Easy to Install: This valve light can be easily installed and removed, it is fit for American and English style mouth, not fit for french style, there is a waterproof pad, just install it in the valve and then make it tightened, powered by 3 AG10 button batteries Come with 2pcs Adapters: Comes with adapter for a variety of vehicle valve, tire valve lights can be used in cars, motorcycles, mountain bike (ordinary bike valve can also be installed), Independent circuit design, light-emitting circuit