I am a big fan of clamps and having options to hold my tech, not only in my office as you will see, but having the versatility when I am out and about. This clamp does just that trick. You will see in my pic I am actually mounting the clamp on a more roundish rectangular "pipe" that is part of my Neewer rig. It holds perfectly.

I like this particular clamp because once you get the hang of the locking "knob" it has a lot of play that allows for swinging the arms in many different directions. It does control the phone clamp swivel as well so that is where you want to hold onto the arm as you make your adjusments.

I like the amount of play you have with the two arms giving you the 9.8" degree of length. That makes for a lot of action to be able to extend and retract the arms for the best possible angles.

The phone holder itself is a nice spring loaded design which makes it easy to add or remove your phone from the holder. You have two choices for how you attach the phone holder to the arm with the 1/4" screw insets to receive the male screws of the arm. You could easily use this phone holder on any standard tripods as well.

The clap itself has pad that keep your pipes or wherever you are connecting your clamp to from being scratched up or scarred. One last note is that I really do like the orange color of the clamp and arm tighteners. That is a snazzy touch. Oh last last note - always good that instructions are included with some helpful hints. I mean this is a pretty obvious setup, however, notes from the manufacturer are always appreciated.

Stoked to have this and that it is in my gear trove - oh and you can see how it would hold a phone - of course I had to take a picture with my phone, so you get a mock make up of what it would be if holding the equivalent.