The base of this mount expands out to 3 3/4 inches in diameter by turning the adjusting knob. Thiw version of our cup holder mount has a height adjustment feature. You can raise or lower your device from 6" to 8" measured from the top of the base. The mount comes with the EXP-1 adapter plate. The plate has a 4 hole amps plate that will accept the Yaesu remote head bracket.  This mount comes with a 5mm stud that will thread directly into your control head...nothing else to buy.  This version comes with the Microphone holder as well.

Please note this auction is for the mount only. 

The control head and microphone in the photo are not included.