[Easy for installation]: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. Fits all standard 7/8 inch (22mm) or 1 inch (25mm) marine antennas. makes it easy to return the antenna to its correct, upright position. [ 316 Stainless Steel]: Constructed - investment cast 316 stainless steel. In humid air or high-temperature weather, compared with 304 stainless steel or iron material, 316 stainless steel has stronger anti-rust, abrasion resistance. [EXQUISITE DESIGN]This VHF marine antenna rail mount has a lever-action drop handle, which can quickly and easily lower the antenna, leverage makes lowering the antenna quick and easy for passing bridges, storage and trailers, duty marine antenna mount has two adjustable ratchets., Weight: 0.82232423726 pounds, Manufacturer: Prterver