This Black Pen Style E Cigarette is a stylish alternative to the traditional cigarette. The Pen Style (Model RN4072) is approximately 15.5 cm long, light weight and resembles a pen (hence the name). The Electronic Cigarette body is comprised of atomizing device, microcomputer controlled circuit and lithium battery components. The Blue LED will glow as you inhale and the atomizer is engaged.   When you stop inhaling, the atomizer will turn to stand by mode. The cartridge holds almost a full milliliter of Smoke Juice, which is about the equivalent of 10 to 12 tobacco cigarettes. The atomizer produces a satisfying volume of vapor with ease. Everything you need to get started is included except liquid: 2 Complete Pen Style E Cigarettes, 2 Atomizers, 2 Batteries, 1 USA Wall Charger and 5 Blank Refill Cartridges.