The Nite Ize Spokelit 2 Pack Wheel Light allows cyclists to set their SpokeLit to one of six colors, or to leave it cycling through color-changing Disc-O mode. Illuminated by a bright, efficient LED and housed in a sleek water and shock-resistant body, this SpokeLit will fit most three-spoke pattern wheels providing valuable, active side visibility and that certain cool factor for riders of all types. To use the SpokeLit, simply press the groove into the spoke of your wheel and slide it toward the rim until it is secure. To turn it on, press once, then to choose your color, simply press again during the first cycle when it lands on the color you like. If you don't choose a color it will continue to cycle through all the colors in Disc-O mode. Now you are ready to ride, and the SpokeLit will create the attention-grabbing effect of a moving circle of light to keep you seen and safe.