The Glo-toob is a multi-function, reusable light with hundreds of applications, both civilian and military. Waterproof to over 11,500 and virtually indestructible, Lithium Glo-toobs can take knocks and bumps in any environment. Glo-toobs are perfect for scuba, camping, road side emergencies, action sports or any extreme situation like covert Military operations. Its compact design allows you to easily carry it in your pocket, on your belt, or in a glove compartment. Features * Virtually indestructible * Powered by inexpensive Lithium battery * Weighs only 2.18 ounces * 360 degree viewing angle * Nitrile O-ring seal * 3.75 in. x 0.95 in. (80mm x 24mm) Specifications * Usage:30 Hr. * Power Source:23A Alkaline Battery * Batteries:Yes * Switch:Twist Cap * Burn Time:100,000 Hrs * Submersible:Yes * Carry System:Lanyard