Feature:1. 316 STAINLESS STEEL: The VHF antenna mount is constructed from marine grade 316 stainless steel, which is highly resistant to seawater erosion for long lasting durability in harsh environments.2. HIGHLY POLISHED FINISH: Featuring a beautifully polished mirror effect, the marine VHF antenna base mount not only provides protection but also enhances the aesthetic appeal of your boat.3. COMPATIBLE ANTENNA: Adjustable VHF antenna mount fits all standard 1 inch marine antennas, making it an ideal choice for RVs, yachts, freighters, speedboats, and various types of boats.4. SCREW ACCESSORIES: The boat VHF antenna mount package includes two screw accessories options, bolt and screw. All fittings are also made of 316 stainless steel.5. ADJUSTABLE DESIGN: The antenna base mount has two adjustable ratchets, upper ratchet is adjustable at 270 degrees and the lower ratchet is adjustable at 180 degrees.Specification:Item Type: Marine VHF Antenna MountsMaterial: 316 Stainless SteelAntenna Thread Size: Approx. 25mm / 0.98inFitment: Suitable for RVs, yachts, cargo ships, speedboats, and all types of boats with standard 1 inch marine antennas.Package List:1 x Antenna Bracket16 x Installation Accessories