About this 3D model

My Colleague bought a passive phone holder for his iPhone, but the smallest setting of the holder was bigger than th iPhone 8. He asked me to try to find a solution. This is my solution. video link: https://youtu.be/ZTjcbHJorRU Update: 2021.02.06: I have updated the gadget and prepared the new version. I have added the 2nd. magnet hole and modified the bottom holder side. Original passive holder belowPassive holedr link: https://www.amazon.com/Brodit-711083-Passive-Holder-Swivel/dp/B07KMMK435