The SpokeLit LED bike light is an ingenious way to light up your bike so you can be seen by cars, pedestrians, and fellow cyclists from the side. The SpokeLit is illuminated by one LED and is easy to install between your spokes. Turn on or off by pressing the simple button switch. It remains in place, even as you jump curbs, fall into potholes, or slug through the slush. The SpokeLit is water resistant if it gets wet, it should be taken apart to dry, which is easy enough. The SpokeLit is a MUST for cyclists who don't like to park when the sun goes down!