I had to order it from Thomann's in Germany. Ordered it Tuesday morning and it was on my doorstep Friday. The unit mounted to the guitar with no modifications needed, using on of the included sets of mount bolts. It took about 2 minutes to install. The only issue was the wiggle stick would not fit through it's hole on the tail piece. Using som drill gauges I found the arm was exactly 1/4" in diameter and the hole it was supposed to slide into was 15/64 inch. I ran a 15/64 drill bit trough and tried to ream the hole slightly, then ran through with a 1/4" bit. added a few more minutes to the Install but it is now perfect. Restrung with my standard .08 to .38 EB strings. It sounds and plays wonderfully.