The Chi You Megan clone by Tobeco features an all copper setup. Copper tube, copper top and bottom cap, copper everything besides the silver plated copper contacts. Engraved with The Style of Mojo logo and all. The Megan clone comes with a set of two top caps. One for your 22mm atomizers or smaller and one for your larger 26650 atomizers. If you're looking for a hard hitting 26650 mechanical, this may be the one for you.