Made of 14pcs colorful RGB LED lights. Ultra Bright in the night. It can flash 30 different kinds of patterns, each pattern will be changed every 4 seconds. Visible from all angles for ultimate safety and style. perfect for night cycling.^ The faster you ride, the more complete and beautiful the patterns are When riding speed reaches 18 mile/h, the patterns will become complete, cool & perfect. If speed is below 18 mile/h, the bicycle wheel lights will show half or part of the pattern. Fun pattern effects.^ Installed on nearly all bicycles, such as foldable bike, road bike, mountain bike and so on. This bicycle wheel lights are simple to install. You only need minutes and it's suitable for standard spoke bicycles with 16 inches or above. No tools needed.^ IP55 waterproof design, Feel free to use on rainy days, the light is fully waterproof, but it can not be soaked in waters. Equipped with light sensor and movement sensor, only flash at night and action.^ Easy, cool way to help your kids accessorize their bikes. Added bonus of being more easy to see at dawn/dusk or at night when riding around. Everyone liked the various colors they could choose from. This led bike lights are even more fun than you thought it would be.^