Holds a Nexus 5 phone and charging cable. The USB cable is inserted and fixed in an opening in the bottom. Use the original Nexus charging cable for a good fit. If it's a bit too loose, you can put a piece of paper between the plug and the holder so it sits tight. The plug should not move when you pull out the phone. Here you can make yourself some distance tubes to mount it with an offset from a surface: https://bit.ly/2IThERS I used 12 mm long tubes in the photos here.