The distinctive shapes, styles and overall appearances of all Mag Light flashlights, and the circumferential inscriptions extending around the heads of all Mag Light flashlights are trademarks of Mag Instrument. Made with the finest aircraft aluminum the light possess an exceptionally durable body that is machined to exacting tolerances. Features High-intensity adjustable light beam Spot to Flood Converts quickly to a freestanding candle mode Rugged, machined aluminum construction with knurled design Anodized inside and out for improved corrosion resistance Water and shock resistant Spare lamp safely secured inside the tail cap Specifications Overall Length 6.607 Barrel Diameter .709 Head Diameter 1 Weight with Batteries 4.15oz Battery Life 5.5 Hours Batteries Required 2 AA Alkaline Maglite 2 Cell LED Mini Maglite 2-Cell AA PB Gray Pewter