K&M 18873 Universal Holder

The holder clamps onto the stand perfectly, offering a firm and stable grip. I am using this with the K&M 19742 Tablet Holder and there is only one single shortcoming on the handle/screw end where the tablet holder mounts - the horizontal grip is quite loose. No matter how much you tighten the handle, screwing on the tablet holder, the resulting nut&bolt construct spins too loosely around the Y axis. This results in the tablet holder tilting left or right every time you push with your finger onto the tablet off-center. This forces you to use the tablet super lightly or to hold the tablet holder with your other hand to prevent it from spinning uncontrollably. An additional rubber washer (or a pair) or something similar might solve this issue, still have to check that. But other than that - quality made, no compatibility issues or mounting/clamping problems thus far.