In like-new condition with original box, barely used. Game-changer though if you need something to navigate 3D models or CAD drawings much more intuitively than a regular mouse. The zoom and orbit on this thing are butter smooth.
I have no use for it currently, and this particular model seems to be going for $180-$200+ online (probably because it is the wired version, which is generally more desired because you don't ever run out of battery and never have to constantly charge it).
I'll sell mine for $125 to the first one who stops by to pick it up. Email me if you're interested!