iPad + iPhone Holder for Multifunction Arm mounting system

This is a simple holder I designed in TinkerCAD to hold my iPad mini and iPhone 7. It attaches with 4 M3x10 bolts that are screwed in from the front. You should also be able to use M4 bolts, but all of mine have washers on them and wouldn't fit in the holes so I had to use M3. I uploaded the files for the combo holder as well as the standalone iPad holder if you want to print it by itself or have a bigger phone.