This is a tv/soundsystem remoteholder for the very popular IKEA LACK table (https://www.ikea.com/de/de/p/lack-beistelltisch-weiss-30449908/)

It is designed to be slim and somewhat aesthetic and fit 2 Samsung remotes inside (width of chamber is 50mm, radius 25mm).

To mount it, just slide it on the leg from below to the desired height. The tightness can be adjusted with a piece of tape to compensate for fluctuations in fabrication of the table or your printer. The square hole for the table leg measures 50,1mm to prevent scratches in the paint when mounting.