Gooseneck makes a very solid impression and is adequately dimensioned with 50 cm.
Span table mounting 5 cm
The tablet holder is how my Vorrezensent has been correctly described, really tight, but apparently not so tight that this tablet may be damaged. I have the Samsung Tab 3 10 "together with Original Samsung Flip Cover (ie front of the cover to the rear transshipped ;-)) in the holder. The small bead, the case has the cover above, is not quite pressed together by the holder, thus is also likely to force not be so great that an unprotected tablet may be damaged. The removal of the tablets from the holder but is still (how shall I put it?) a bit annoying.
Swiveling the holder is also only after one has a matching Allen found, with which one has solved something that really stuck bolt.
Gives a star deduction with me.
All in all, a very good product that I would classify under "unbreakable" and not hesitate to recommend. Price made me initially also doubt something of this in my opinion, entirely appropriate for this high quality product.