Ocathnon Bike Wheel Lights Automotive Tire Light Waterproof Led Flash Tyre Wheel Valve Cap Light for Bike Decorative Bicycle Accessories Led Bike Lights Made from Plastic and Stainless Steel, Durable, High Impact, Rust Resistant, waterproof, fits for Presta & Schrader valve. Light up your bike at night with the Speed Racer rim lights - there are 4 colors to meet your demand. Motion sensor LED technology ensures durability along with 50,000 hours of lifetime Easy to install - simple attach LED wheel flash light to valve stem on bike.It is a great novelty type item to add a cool effect to your bike. Fits almost all bikes Batteries: Requires 3 x AG10 button batteries per light (included)