First,off these coils were as described and I through one in ASAP and let me tell these Duodenary coils are freaking awesome awesome flavor gives big dense clouds with this coils all in all I recommend theses coils if you own one of these tanks although highly underrated it is one of the best atomizers on the market and the multiple choices of coils offered you can go wrong, best of all Great price super fast shipping. Coils received and they were as described what made this extra special for me is (and this may seem stupid) but the sent the actual item box and the coils were packaged like they were when the left the factory. Most Places do not send the item box any more but when i order sum thing online I was everything associated with the item which includes the box so I can use to decorate my vape room. Thanks for the super fast shipping and awesome price and yes Item was verified as AUTHENTIC. Will buy again.....SOON