Meteral: Aluminum Tactical switch: The second generation of pressure activated tape switch Quick Detachable design, easy installation and easy to operate Securely attaches to any Mil-Spec Picatinny rail in seconds Weatherproof-O-ring and gasket sealed With Q.D. mount base Momentary & Instant-On Switch Quick Detachable Design, Throw lever Ring Mount for mounting on any 20mm Rail 2 Method On/OFF: One Click Button and Removable Pressure Tail Switch( with Rubber Cover ) Remote panel pressure switch included Powered by 2*CR123A(3.0V) or 2*16340(3.7V) Batteries(Not Included)