Corrosion & water resistant, machined aircraft-grade aluminum alloy, Type II MIL-Spec anodize plating. Available in black, red, sliver, or blue; Unbreakable polycarbonate lens Length: 5.3"; (134 mm); Body Diameter: 0.6"; (15 mm); 1.64 oz.; (46.9 grams) with battery; Light Source: C4 LED technology, impervious to shock with a 30,000 hour lifetime 90 lumens; 860 candela; 58m beam; runs 6.5 hours; Push button tail switch; Two "AAA" alkaline batteries (included) IPX4 rated for water resistant operation. All openings o-ring sealed; 1 meter impact resistance tested; Removable pocket clip