Made for a 1.5 inch Tactipup dog collar and Airtag. I print it vertical so and use supports for the top set of hooks.
Link to the Onshape CAD model is here: https://cad.onshape.com/documents/11c0169beb618f3945f8365b/w/c926d9691f70d1e7d4d32566/e/dfb6425f19e195fc2304d031
The author marked this model as their own original creation.