Meaning:
-In is debatable! Fixing thus keeps them neatly on the arm is equal to the pinch of the wrist.
Fastenings of the camera so that it stands upright (as in the YouTube video above) is not the most elaborate, since the Velcro straps come up when on and take off in the way and to hack and in the version as described by Stefan Richter, holds the gray stripes no longer completely in well because the black Velcro consuming all of Velcro.
Price:
-now that I have the part, I would almost say. a waste of money, but what it actually does.