I know that is a question of faith - but I'll never understand why you do with such a device (just like laptop, smart phone or flat screen) a "glossy finish" before the display !!! Especially on the bike it interferes mightily, when the sun falls on the glossy surface and a really hearty lights in his eyes. It can be seen on the device and nothing more "blinded" one is also => So first a "matte screen protector" stick - then the problem is resolved. And the cell phone (Samsung Galaxy S2) works through all the slides anyway einfandfrei (=> a matt DSF on the phone, the "film" of the bracket and the "matte DSF" in the film of the holder) :-) Good is that the holder can rotate - with screening, including "cross" used, or to be able to align the equipment to curved handlebars. For me personally the latching rotation of the bracket is but "soft" to making a "shaky" impression. After installation and the perfect alignment to the handlebar I have a thin gasket placed underneath (from the tap) with the washer the retaining screw on the spring to rest - now "wobbles" drive it no longer when but can be rotated even if I want. :-) Now it's perfeckt!