1.quality guarantee 2 reasonable structure 3, fluent suction 4.durability 5.fast delivery 510 automatic Battery 180MAH Specifications: Diameter9.2mmBattery length73mmBattery weight13gBattery capacity180mAh Voltage3.7v-4.2vColorRed,Black,green,golden,blue,purple,Stainless steel,pink,whiteBattery good for350puffsBattery lifemore than 300timesPaymentPaypal,T/T,western union,L/CNo payment collection, ...