These LED Bike Wheel Lights had 14 LED lights which will create 32 kinds of patterns. It is easy to install. Clamp it onto the stem of your in seconds. They fit most bicycles, motorcycles and cars. Those LED lights will flash when you’re driving at night for safety and visibility. Feature - Color: As shown - Material: ABS+PC - Size: 11 x 7 x 1.5mm - Made of quality and transparent ABS and PC material with 14 LED that is able to create 32 kinds of patterns, providing great riding experiences - Waterproof design to ensure lights work normally on rainy day - Light and Motion Induction: the lights will only turn on in the night and when the bike is moving and it will automatically turn off in after the bike stops - Installation: Clamp it onto the stem of your in seconds and you are good to go. - Great compatibility: whether the of your bike is American or French style, whether your bike is mountain bike, road bike or ordinary bike, this stem lights can be perfectly matched. Package list: 1 x Bike Wheel Light