Designed with safety and innovation in mind, boaters can adjust the position of their antenna with the simple push of a button from the comfort of their helm. The GS-850 is a fully electric unit with hidden wires inside the hardtop. This mount easily installs to the surface of the hardtop and fits all top thicknesses.Standard 1”-14 thread (male) shaft to accept standard antennas up to 8′; No under-mount clearance required; Machined / Anodized aluminum body with a light brushed finish; Threaded shaft for consistent lift and descent; Delrin bearings for smooth operation; Features breakaway pin for manual adjustment; Kit includes drill template and installation instructions; Includes 6″ lead for 12-volt DC power supply for lift and descent; Accepts 3A fuse in the main +12 VDC power feed (not included)