This is a really very nice example of the M2-9R tonearm.
The M2-9R is the reimagining of the classic 3009 tonearm. It's a 9" 'J' shaped tonearm with removable headshell just as per its inspiration, but updated in many areas and now using ball races in place of the originals knife edge bearing.
The arm is in superb condition, I really can see few signs of it having been used. Please see the pics for what's included - the cable, anti skate support and bob weight are included, as are 4 washers to protect the arms base being marked by any fixing used into the plinth, but there's no packaging (although we should be able to ship it safely).
The additional heavier counterweight is not included, I believe (according to the manual available here) that the maximum cartridge weight it can accommodate without it is approximately 16gm (which covers the large majority of cartridges), so is unlikely to be an issue unless you're using something really heavy (Ortofon SPU for example). Naturally I am sure SME can supply this or any other spare parts as required as it is still a current production model.
