Improved stable phone stand

This is a remix of the brilliant Stable Jointed Phone Stand by Qrome, which is very sturdy, works with phones and tablets, and disassembles for easy storage/transportation.

My two improvements to the original stand can be seen in the second image:

1. The original phone stand slid around on a desk very easily. I added feet to which you can stick on rubber pads, so the stand doesn't slide around when you use the phone's touchscreen. I used Scotch Self-stick Rubber Pads (see the last image).