An E-cigarette is a device composed of a battery, an atomizer, and a refill cartridge that produces vapor when it’s used. When an atomizer and a refill cartridge are combined in the same unit, it’s called an cartomizer. Most e cigarettes currently on the market are cartomizer models and have definite advantages over the original 3 piece models.Advantage:1.Pen-style: handy and fashionable2.one hole atomizer, no leakage3.slot on the side, no burning smell4.Various colors available, multiple choice5.perfect after-sale service Disposable electronic cigarette will not stain your teeth yellow or leave offensive smokers breath like cigarettes. Our Enterprise motto:Provide first-class environmental-protection healthy electronic cigarette for the world-wide client.Making every effort to decrease the global high-carbon and high displacement and dedicating to improving increasingly deteriorating living environment and life quality as our enterprise tenet.Let's cooperate together and light up our brilliant future!Specifications:E-cigarette size: 140(L)*9.2(D)mmE-cigarette weight: 40gContent of battery : 3.7V~660mAhCharging time: 2-3hoursBattery life: rechargeable 380timesPuffs per tank cartridge: 500puffsStart kits:Rechargeable Battery*2pcsTank Cartridges*5pcsAtomizer* 2pcsAdaptor *1pcUSB charge*1pcManual*1pcGift box*1pc