Agptek Making Riding More Exciting Bicycle/Bike Wheel Light, DIY Cool Colorful Double-side Display Cycling Bicycle Bike Wheel Light, With Custom Programmable, 48 LEDs, 48 Pattern colorful double-side display, Waterproof. Make riding more exciting and attractive48Led,48Pattern colorful double-side displayDisplay your own graphics, download via USB5Km/h beginning to show,15Km/h full displaySimple installation and removal,10 seconds to complete