Cyalume ChemLight Military Grade Mini Light Stick, 2" Length, 4 Hour Duration, Yellow (Pack of 50) OFFICIAL MINI LIGHT STICK OF THE US MILITARY  ChemLight brand products are standard issue equipment and trusted in the most demanding environments GUARANTEED FOUR YEAR SHELF LIFE AND INDIVIDUAL WRAPPING mean mini ChemLights are guaranteed to work whenever you need them 100% NONTOXIC, WATERPROOF AND NONFLAMMABLE CONSTRUCTION to bring light safely to any situation or conditions PATENTED LONG LASTING FORMULATIONS provide bright light output for as long as four hours despite the mini size MADE IN THE USA UNDER STRICT QUALITY GUIDELINES to guarantee consistent and excellent results in every product