This is a clamp made to mount a standard ~1.2cm diameter microphone mount.

Remixed from Desk Mount Headphone Holder / Mount / Clamp by Beaver | Download free STL model | Printables.com, also uses the same long and short screws.

Use the long screw if your desk is thinner

Printed in CR-PETG @ 10% infill, 2 walls

Print on its side (orientation of the STL) with no supports