Features: These LED Bike Wheel Lights fits most bicycles,motorcycles and cars. LED lights will turn on when the vehicle is moving and off when the vehicle comes to a stop. Enhances safety by increasing visibility at night and during bad weather conditions. Easy to install and remove. Please take out the white insulation sheet which in the battery box before use. Simple to use,long lasting,and ensure your safety. Specification Type: Tyre Valve Cap Light Material:Metal Color:Green/blue/yellow/red Quantity:2pcs Net Weight: 25g/0.9oz Package: 2*Tyre Valve Cap Light