Folding Phone Holder

I needed a phone holder that could be folded flat and be able to hold a phone at different angles including 90 degrees. Printed in 4 parts, the hinges are fixed by pushing 1.75mm filament through the holes. It's slightly longer than a credit card and 6mm thick. I have uploaded a new version (v2), this one is 0.4mm thicker so 6.4mm overall, this allowed for slightly larger hinge holes after feedback that some found the holes too small for the filament to fit.