[Red Bike Wheel Light]: Bike Wheel Light with 20 led beads & red flash lights provides cool lighting effects for night riding, attracting attention & making you stand out from others; Fits most bicycles with wheel circumference less than 78 3/4", suitable for BMX bikes, commuter bikes, mountain bikes, road bikes, etc
[Automatic Lighting]: With built-in sensor, it automatically switches on at night when the bike stays moving and switches off when the environment brightens or you're stationary for 1 minute, saving energy and convenience
[Safe to Ride]: No riding speed required, it provides bright & eye-catching lighting to handle low-light conditions, making you visible to other road users and pedestrians to ensure a safe ride
[Flexible & Easy Installation]: The light strip allows you to flexibly wrap to create a special lighting effect or cut to better fit your bike; Quick and easy to install by wrapping the light strip on the bike spoke and securing with included screws
[Battery Powered]: Powered by 2 AA batteries (Not Included), it allows you to use cool spoke light everywhere you go