Features: brand new and high quality There are seven colors in one lamp, and you can have seven colors at the same for time when you buy one. The light string adopts PVC casing, which is more convenient to install and disassemble. All the lights are waterproof and fully sealed to ensure the safety of night travel. The wheel lights automatically jump and flash 18 kinds of changes, making your wheels unparalleled dazzling. The product has a battery version and a USB version for you to choose from. Specifications: Material:Plastic+Led Size:as Picture Showns Type:A/B/C Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Set x Bike Wheel Lights.