I have here a used Wise electronic constant-pull 2086 tension head. It is in almost new condition. I have strung just under 200 racquets on it. It was just serviced through Herb Wise and still carries a warranty. This is the new version with the new style string gripper (great improvement). I will ship it in the original package with all cables and manual. Also included is the optional foot switch ($35 new). I am asking $450 plus shipping (usually under $20). I bought it under three months ago for $540. This machine works great. I had sent it back to Wise a month ago for an error message that came up sometimes. I have strung around 35 frames on it since without a problem. The only reason I am selling is I just upgraded to a new Gamma machine. My loss is your gain (as they say in the fleabay world!). Email me philprimerano@hotmail if you have any questions.