This is a Stand to create a clean look for your Audio amps. The dimensions are specific to fit a KnoxGear KN-HPA4 Headphone amp and then a Focusrite Scarlett solo 3d gen Audio interface. Design was made through the CAD software sketchup as an STL file. When loading file into slicer software it may appear to very small, however to scale to the right size you must set the model to Inches instead of Millimeters and it should adjust to the right size.