These holders are designed to fit on any 45x32 mm wood squares, but it especially fits on the standard IKEA IVAR furniture. It can be mounted completely without screws.

The phoneholder is designed with a gab at the bottom, so the phone can be charged in it.

The General Pocket Holders are 2 mm deep, so coins and rings etc should not fall out.

I recommend printing the parts laying on their flat side with 100% Infill and, if your slicer has a tree-support option, I also would recommend using it.

To mount one Holder, just push it on from the front. Then press the little spike a bit in the wood, to prevent it from slipping.