Our L.E.D. Cinch Marker holds a lot of brightness and versatility in one ingenious little package. With an elastic loop at one end that stretches from 3 to 7 inches, it can be looped through itself and attached to almost anything with a hook, ring, or handle, increasing your nighttime visibility and personal safety. Made of durable, reflective material, its efficient (100,000 hour) bulb and polymer strip emit a bright light that can be seen from up to a mile away. Powered by an easily replaceable, long-life battery (included), the lightweight, reusable Cinch Marker is an excellent, ecologically responsible alternative to chemical glow sticks. Three modes: steady glow, continuous flash, and off.