The Mag-Tac 2Cell CR123 LED Flashlight comes with a detachable pocket clip and features three modes: Two power levels (Full Power for extreme brightness and Power Save for prolonged battery life) plus a Momentary mode (in which the light stays on only while the switch button is being pressed) – all selectable through Mag Instrument tailcap-switch-activated "Quick-Click™" mode selector. Mag-Tac 2Cell CR123 LED Flashlight Features: - "Quick Click" Access - 3 Modes: Momentary, Full Power and Power Save - Length: 131.95mm - Barrel Diameter: 26.67mm - Head Diameter: 26.67mm - Weight with batteries: 136g - Batteries required: 2x CR123 batteries What's in the box 1 x Flashlight