Fitment: Please state your bike model and year of manufacture by e-mail after purchase! Compatible with such as kids’bike, foldable bike, road bike, mountain bike, etc. Except wide spokes bike. Specifications: Condition: 100% Brand new aftermarket item Product size: 15.8*2.8*.1.4cm Waterproof level: IP*5 Material: PC 32 LEDs Battery: Three AAA batteries (baby does not contain batteries) Switch mode: vibration sensor Working time: 12 hours Color: As pictures show Feature: 1.High level of waterproof design with bike wheel light. Even immersed in water, within 5 minutes, the bike tire light can work well. No longer worried about the bike tire lights will be damaged when riding in rainy days. Batteries are included, right out of the box, Enjoy the fun of riding with your family 2.This LED bicycle spoke lights are the hottest new trend to hit Southern California and leading American markets. Increased visibility from all directions, safety for night riding Package contains: 1 piece spoke lights Notes: 1.We strongly suggest comparing the posted picture to your faulty/old unit! Please kindly check your motorcycle's model and confirm this item is suitable for it before ordering. 2.The product does not contain installation instructions. If you have any questions about that, we kindly recommend you go to the nearby mechanic to ask for professional instructions. 3.Installation: Easy to install, assemble and remove with great convenience, direct replacement. Highly recommended installation by professional. 4.Color Difference: Due to the light and resolutions setting difference, the item's color may be slightly different from the pictures. 5.Please allow slight dimension difference due to different manual measurement.