Oumers Bike Spoke Light, Bike Wheel Light, Bike Rim Lights, Bike Flash Lamp Bulb with Super Bright 20-LED Lights, Increase your Visibility, Safety. Durable and Easy to Install, Multicolour 20 Super-bright LEDs for safety and style on night rides. 4 colors you can choose. Blue, Green, Pink, Multicolor mix and match No tools required, fast and easy installation. Durable, High Impact, Rust Resistant It fits almost all kids' and adults' bike sizes. Make your wheels glow with a circle of spinning light, Idea for Safety and Warning Use 3 AA batteries (not included). Package includes light for one wheel or frame.