The Connect Quick Mast Plate (CQMP) is the the one that is used to attach to your mast and it accepts either the Horizontal or Vertical Boom Plates (CQHP and CQVP).  We provide this separately in the event that the users want to equip masts so that they can mix and match products with these mounts.  

NOTE:  No hardware is provided with this plate.  The slots will accommodate U-bolts for 1" to 2" tubing and my recommendation is to use 5/16" wire U-bolts.