5 in 1 LED Lights: Shows colourful rainbow circle patterns,
The device is designed to run in the dark night automatically while wheel starting run and stop in seconds when wheel stops
64 kinds of colourful patterns shows one by one in the dark night, shining and fashion and keep your bicycle safe and cool
Battery required: 3*AG10
Valve Cap: American Standard / England Standard Supported (France stand is NOT availalbe)
Race Speed: 10km/Hour
Waterproof