5 1/2 overall. Black anodized aluminum housing with non-slip grip and black stainless pocket clip. White LED with up to 67 lumen output. Runtime: up to 2 hours, 45 minutes per battery set. Beam distance: up to 81m. Peak beam intensity: up to 1648 cd. Push button tail cap switch. On/Off/Momentary. Uses two AAA batteries (included). Hang packaged.