The Nite Ize Nite Dawg Led Collar Cover is the answer to every night-loving dog owner's problem: losing sight of their best buddy after sundown. Durable, weather resistant and lightweight, this super low-profile (not much thicker than a bandage) flexible LED illuminated strip Fits comfortably over almost any dog's collar and closes securely with two micro hook-and-loop tabs. Its bright, light-transmitting polymer core is illuminated by a super efficient red LED bulb with two mode settings - flash and steady glow, and is housed in a high-quality thermal plastic urethane exterior. Visible up to 1000 feet in the dark, and powered by a long-life, easily replaceable battery (included).