RAM® MOUNTVERTICAL 12" DOUBLE SWING ARM MOUNTING SYSTEM•360-Degree Rotation •Kit includes a 6.25" x 2" Mounting Plate Adapter (RAM-111BTU) a 6" Curved Extension Swing Arm (RAM-109-1AU) a 6" Curved Swing Arm (RAM-109-1APU)& a Vertical Swing Arm Base (RAM-109V-BU)