Unlike traditional magic friction arms, the Edelkrone Monitor / EVF Holder does not eventually spin loose when making adjustments to your Monitor or Electronic View Finder. Like other Edelkrone products, this product is built like a tank. You can find this product at http://Edelkrone.com or through many of their eBay resellers (found here).
Edelkrone, EVF Holder, EVF Monitor, LCD HDMI
Edelkrone Monitor / EVF Holder