RAM Vertical 6" Swing Arm Mount with Fixed Socket Arm (RAM-109V-4U) (sku 55113)The RAM 109V 4U consists of a 6" long curved swing arm with open socket and vertical surface mounting base. There are two (2) pivoting points on the mount: one at the swing arm and base and one at the center of the open single socket. Each pivoting point allows a complete 360 degree rotation. The open socket will accommodate all RAM 1. 5" diameter ball component parts. PRODUCT DIMENSIONS Overall Height: 8. 45" Total Swing Arm Length: 6" HOLE PATTERN