This is a 22mm stainless steel mechanical Atomo tube mod new in the box. It includes tubes for 18650, 18500, and 18350 battery sizes. It has a magnetic spring in the switch.

I believe this not to be an original from the Italian company, but rather a high-quality reproduction. The QC card says it was manufactured in 2014 like the originals. I have two of these for sale. While the authentics were a few hundred dollars, the reproductions originally sold for $50. I'm asking $40 shipped. Please email with any questions.