Features: *Made of high-quality materials, wear-resistant, corrosion-resistant, waterproof, easy to use, durable and safe. Great for outdoor riding. *Gear position: two flashing modes of fast flashing and constantly lighting, providing you with a better night riding experience. *Best for outdoor riding, suitable for mountain bikes, battery bikes, road bikes, folding bike. *This LED bike tire light is the best choice for safe riding at night, very suitable for night riding. *Easy to install and disassemble. Installs seconds before you are to get in the car, making it easy and convenient. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: ABS Size: 9.4*3*2cm Battery: 2AAA batteries (not included) Package List: 1 set x Bike Wheel String Lights