✔DESIGN FEATURE:This ratchet rail antenna base features a lever-action lay-down handle that makes lowering the antenna quick and easy. Lever action laydown handle makes lowering antenna quick and easy for passing under bridges, storage, and trailering.
✔SIZE: Thread male size:1"(25mm),Recommended for installation on 22mm(7/8 inch ) to 25.4 mm(1 inch ) vertical, horizontal or oblique rails.(Refer to the size chart for specific dimensions)
✔2 ADJUSTABLE RATCHETS:The antenna pedestal has two adjustable ratchets. The upper ratchet has an adjustable angle of 270 degrees and the lower ratchet has an adjustable angle of 180 degrees.
✔WIDELY USED :You can use it in various environments.Workable indoor and outdoor.