109VU VERTICAL SINGLE SWING ARM MOUNT WITH ELECTRONIC BASE. 6 long BENT swing arm mounted on a vertical surface mounting base. At the device mounting end of the mount is a rectangular 6. 25 x 2 plate. Two pivoting points on the mount. One at the swing arm and base and one at the center of the rectangular plate and the end of the swing arm. Each pivoting point allows a complete 360 degree rotation.