Original Apple, fully tested and deep cleaned, Graphite (grey) 'hockey puck' USB mouse that shipped with the graphite and snow iMac G3 models. All graphite models came with the indentation in the button to help overcome the problem of the mouse rotating during use. It has a 60cm cable and one button, although it will function on any computer with USB.
All hockey puck mice originally had a matt coating applied to the coloured inserts but over time this gets very tacky and dirty, and eventually rubs off. As this has affected all the mice we see, we do not take this into account in the grading and all our puck mice will have been thoroughly cleaned taking the plastic back to its natural gloss surface.