2win2buy Bike Spoke Light, Spokelit Bicycle Lights, Bicycle Wheel Lights, 2 PCS Bicycle Flash LED Cycling Bike MTB Wheel Tire Valve Spoke Light, Used Safety Warning [3 Light Mode] - Blue Easy on and off, installed in seconds before you get ready to ride. Durable, silicone surface is water resistant, shock resistant. This bicycle safety light will help you make your visible on the road at dark 3 Modes: Strobe , Flash, Slow Flash. Quantity: 2 pcs; Powered by 1 CR2032 (3V) battery. (INCLUDED)