... cigarette, no screwing system .pcc for 510 . with cartomizer like real cigarette ! Battery screwless system . 0% leaking cartomizers, best quality ... before shipmentShipment termsUPS/DHL/FEDEX/TNT/EMS, door to door, door to airport, dropship About Eson1) Over 4 years experience ... Nucig, Blucig, Catagoria group;4) QC 100% from material to finish products, defective rate below 1%;5) OEM service, welcome ...