Phone Holder with large Base Plate

A Phone holder is a nice thing. However, most of these will not stand stable if used on a Sofa or bed. I tried to improve this one in a way that it will stand stable even on an moving and flexible Surface. 

The Files include 2 versions in different sizes, each 80% and 100%. 

Please make sure to print the holder that fits to the Base Plate. 
So you can use it in bed or on the Sofa.

I printed it nicely on the PEI-Plate for the Bambu Lab X1:
https://amzn.to/3giCJe1