Overall, this neck jig may need a little TLC (stating this because I know nothing about it) to get it back to optimal working condition, but it is a great find at a great price! We invite you to view its pictures carefully and to contact us with any questions you may have. Dan Erlewine developed the Neck Jig using the breakthrough idea of simulating string tension with the strings off. This results in the most accurate fret and fingerboard work ever: no guesswork, and no unpleasant surprises when the instrument is restrung. Just a very satisfied player!The Erlewine Neck Jig has become a valuable asset in busy shops around the world!