I now think that a vendor that I have bought a half dozen egos from is selling egos that are not genuine joyetech egos. I will tell you why I think this. It is because they are offering the new ego-c twist in colors that the joyetech website does not offer them in. When I go to the joyetech website they say they have the twist in black, stainless, pink, and white. That is why I think when I see them offered in lots of other colors I think they must be the knock-offs. Please let me know if that is correct or not.