The FUTURE of vaping is AFFORDABLE, CONVENIENT and DISPOSABLE!!!!! The Vzone Preco disposable tank is a new, revolutionary, disposable plastic tank that has a non-replaceable coil system (just like the old "CE4" tanks, only the Vzone Preco tank is SUB-OHM!!!) manufactured with food grade polycarbonate material for a light weight, but SUPER strong construction. The unique all in one design produces excellent flavor and a surprisingly massive cloud! Vzone designed the tank to minimize the condensed liquid coming up through the chimney when vaping, making even the smallest amount of spit back virtually undetectable!!! This innovative tank can be the cost saving tank we have all been waiting for... for sure!!! We use these tanks in our brick and mortar store in combination with a smart-chip battery that self-regulates between 40-60 watts and we consistently get more than a MONTH of enjoyment out of these innovation little tanks!!!... Enjoy!!!