Cyalume Military Grade Combat Light Shield Device, 6-3/4" Length x 1" Width, For 6" ChemLight and 6" SnapLight Lightsticks ROTATING WINDOW to adjust the amount of light emitted for tactical purposes. Open when you need to read a map, close when you dont want to give away your position MADE IN THE USA UNDER STRICT QUALITY GUIDELINES to guarantee consistent and excellent results in every product STURDY PLASTIC CLIP for temporary attachment to clothing, gear and other assets. PATENTED DESIGN fits all 6 Cyalume ChemLight and SnapLight brand light sticks DARK GREEN COLOR resists corrosion and matches most tactical gear