hidden Screw Design. Fix bracket to wall then slot mount over 2 Sizes available. 53mm & 43mm neck gap for slim necks. MUST print bracket laying down so layer grain runs the length or bracket MUST print the mount standing up. If not, I can not guarantee the strength of the part. 0.2 layer height Minimum of 3 wall thickness 20% Gyroid infill The guitar mount works great in quality PLA, but stronger materials would be beneficial. See the image attached for hole dimensions. I used M4 Screw. Approx 40mm in length Use suitable wall fixings to avoid failure.