SN-D102 Bicycle Decoration Hot Wheel Colorful 7-LED Light (2 x CR2032)
Color: White - Material: Silicone - Powered by 2 x CR2032 batteries (included) - 7-LED 8 colors 12 pattern each pattern has 4 colors - Assembled with light and movement sensor - Fixed on cycle spoke - Pattern is clear and completely when speed up to 20km/h