This is a really solid mount, but the "flexible" shaft is actually just a solid aluminum bar you have to bend.

Works great, it looks like in the picture that the item is really flexible, but it is a solid aluminum rod that is meant to be bent a bunch

On the plus side, the 1/2 inch dia solid aluminum bar was easy to bend

once in place the stiff aluminum rod holds steady

You will get a "Rigid" aluminum rod with a black plastic cover.

I thought it was a flex rod, turns out it a an aluminum solid rod that is bendable , but your not going to be able to move it around , lets say to push it out of the way to make some temporary cab space, a little too much of

This is a solid aluminum bar that you can (under significant force) shape it to whatever angle/curve needed

Solid aluminum rod was very easy to work with and installation took only about 10 minutes in my Dodge Ram pickup.

and I tried to make them as sharp as

Now it doesn't move side to side but rather forward and reward as if there was some play in the rod