Bicycle Tire Core Bike Wind Wheel Bicycle Ambient Features: INDUCTION VIBRATION FUNCTION - This LED wheel light is activated by motion, the light comes on when moving; goes off when stopped. The LED Value Bike Light is a sensor vibration model that lights up extra brightly when the wheels are turning. - Our bike lights improve visibility at night and in inclement weather to ensure . This bike wheel light is the way to increase your when riding in the dark. is our top priority. - Our bike tire value light has been tested for . You don't need to worry about damaging your bike wheel light when riding in the rain, suitable for all kinds of weather, but please don't leave it in the water for too long. EASY to INSTALL - As shown in the picture, this value light can be easily installed and removed, just type value cap and put in the LED light. You can install it to your bike, motorcycle and car in seconds. PORTABLE - Small size is more convenient to carry. Make your bike/car/motorcycle look better. Product Description: 1.One of the products for all car enthusiasts. These LED Wheel Lights are the addition to your car, bike or motorcycle. 2.This product is very easy to use. The motion activated lights turn on automatically when the vehicle is moving and they are great for nighttime, inclement weather and look cool. 3.Simply screw it onto the tire to install and enjoy the super bright, energy efficient and long life of LEDs. Suitable for: bicycles, motorcycles, cars Package Includes: 2* LED wheel lights Attention comes with 3pcs button batteries, please the insulating paper when you use it