The stand can be used for devices up to 13 mm. It consists of a thin, black painted sheet metal with an anti-slip pad on the underside. He comes as a flat sheet, which is bent at predefined, accordingly treated sites at the desired angle. If you let him steep enough, he also holds a tablet.
I have ordered the stand a second time, this time he came pre-bent and, probably on the carriage, bent with me - may not be brand new piece. It was quite a bit of bending work necessary until he stood right, but since then he works just as satisfactory as the first.