Just a simple bracket to hold a sound bar, it can be attached under a table, bench... or against the wall. Two holes are to ziptie your sound bar to it so it doesn't move.
I added the f3d Fusion file so you can modify it, you simply need to input your sound bar section size into the parameters and the bracket will adjust, mine was 62mm x 62mm.
Screw holes are for a #10 screw (5mm) and can also be adjusted in the parameters.

Hope you like it ;)