DP Tuner Chip for 2001 F250 diesel

I have a Dp tuner chip that was in my truck.Im going a different route with it and no longer need it.New it was over $400 im asking $280 if you have a 7.3L diesel and no chip then you need this.IT has a small push button selector that mounts on the dash area and it lights up green and you can change programs while going down the road.THis chip can hold up to 16 different tunes from jody at dp tuner.