Nite Ize LED Illuminated Clip-on Marker is a handy way to create flexible, two-sided illumination almost anywhere, over and over and over again. An ecologically responsible alternative to disposable chemical glow sticks, the Nite Ize Glow-in-the-Dark Clip-On Marker is a flexible polymer strip encased in lightweight, durable nylon fabric. Decorated with a reflective pattern for extra visibility, the NiteIze LED Red with Wave Pattern Clip-On Marker is illuminated on both sides by an efficient (over 100,000 hour) LED and powered by a 2032 replaceable battery (included). Lightweight, thin, and weather-resistant, its sturdy plastic S-Biner double gated carabiner clip on the opposite end; allows you to clip it to itself and create a loop of light to wear on your wrist, or wrap around anything up to 3inches in diameter. The bright red LED has two modes to choose from - steady glow or continuous flash; perfect for creating safety visibility in any situation - every glove box should have a Nite Ize LED Clip-On Marker!