Finger Rest for guitar and bass

Finger rest bar for acoustic guitar and bass, different to other design, this one can be installed and uninstalled without any hardware or glue, leaves no mark on the instrument. 

And it is looking good, a hidden and minimul design.  I was worried but it indeed doesn't introduce any noise or distortion.

Easy print with a little support that is in the backside.

However, it doesn't fit all guitars, but with some measurement, you can easily custom one for your own guitar. Mine was a success on the first measurement and print.  

Both STEP and STL provided.