Sea Dog Antenna Rail Mount. This Rail Mount Adjustable Antenna Base features a lever action lay-down handle that makes lowering antenna quick and easy for passing under bridges, storage, and trailering. Accepts any standard antenna with 1"-14 threads (NOT recommended for whips over 8'). Can be mounted on either 7/8" and 1" vertical or horizontal rails. Constructed of UV resistant injection molded nylon.

Height: 2-13/16"
Width including handle: 4-5/16"