About this 3D model
This is a monitor shelf / headset hook for ACER G227HQL. I made this for my office monitor and originally a platform to display toys, but turn out to be a nice hook for cables and headphones. You can print several copies and put them together to form a platform, which shown on the 3rd picture. I made this with Tinkercad, so feel free to copy and modify to suit your need.https://www.tinkercad.com/things/1oOqRJHRBlS