Fenix AER-TK75 Extender Tube for FENIX TK75 LED Flashlight with Battery Magazine, Four Genuine Fenix ARB-L2 18650 Batteries, Fenix ARE-C1 battery Charger and Red Smith & Wesson LED CaraBeamer Clip Light Bundle Fenix Model AER-TK75 Extended Runtime kit Comes with battery magazine to accomodate four 18650 batteries Genuine Fenix 18650 batteries and Fenix charger with car adapter included. Genuine Smith & Wesson Red LED CaraBeamer Clip Light Included