We have upgraded this Tablet Mount Holder,and tested it many times,and we believe it will tighter enough and not drop anymore.
120mm-190mm wide support 4-12 inch phone & Tablet ,45 degrees to up and down support a clean view,Tighten & Stable,Will stay the place you need.
Just need 2 step to snap on / off with no tools.
Foldable and Light weight,only about 188g.
4.9 inch height,will not touch hand.
Upgraded version,Will not drop anymore.