This is a modular phone case for the Google Pixel 6. It has chamfered rectangular slots on the back to accommodate a wedge shaped insert that can be attached to any number of accessories on the back. This was for my wife's phone and I had made her a case for a previous phone with a credit card holder, so I will design one for this case too. I will upload that once I have finished it. You could also attach a car mount attachment or fold out stands or a knob to make holding it easier. Really anything that you want. I plan on making the wedges separate and just accommodate a small machine screw and make a threaded hole on the back of my attachment.