I have 2 eGo-T's that are gold and I recently got a new tank, My friend has a black one so I was thinking of trading him one of my gold ones for his. Problem is, I have no idea what it is. Here's a pic

We bought ours at the same tabacco store, and both of them came with eGo cases. Can anyone identify the little black one for me?
Thanks

We bought ours at the same tabacco store, and both of them came with eGo cases. Can anyone identify the little black one for me?
Thanks