RAM mount double BALL Joint 50mm length 1inch ball

Here you go, a Ball - Ball Joint for the 1inch system
50mm (2 inch ball centre - centre, distance)

other parts you need for this project

RAM mount 1inch ball joint for dumbbell camera fixture
https://www.thingiverse.com/thing:4062039

RAM mount ball holder
https://www.thingiverse.com/thing:1726251

Huawei P20 PRO RAM mount side edge
https://www.thingiverse.com/thing:4052103

here is my new ultra strong version with metal inside
https://www.thingiverse.com/thing:7289854