Bike wheel light is made of 7 pcs colorful RGB LED lights. 7 color smoothly changing in different modes, it will automatically flash and shows different effect according to your speed, your bike will be more noticeable. Bike spoke lights are made of high quality PC shell with silicone waterproof stopper and built-in lithium battery, it can work great in rain or snow to enhance visibility, your bike with these LED bike wheel lights will be more noticeable, visible and safer. It fits for most bicycles with standard spokes, such as road bikes, mountain bike, children’s balance bike, touring bicycles, etc. Not include the battery, just need several minutes, you can install or disassemble this bike wheel light on your standard spoke bicycles with 16 inches or above.