Have 2 of these docks in use, said Z3C is protected by a thick protective glass plus relatively thick transparent IMAK Case. It 2 inserts were supplied to "adjust" for various applications the different thicknesses of the device. For my case, I was able to rework the great efforts by file. The Z3C sits so well in the dock and once you get the "rotation", the device is placed relatively quickly ... Conclusion: the docks I would buy again.