1 [High Quality Made] Made of Q235 low carbon alloy steel which is strong to handle outdoor device. The entire hardware can be used for poles 1"-2" in diameter. [Anti corrosion & Oxidation] All parts are Dacromet coated for better protection, greater heat resistance, and more environmentally friendly than galvanizing. [Heavy Duty Hardware] Thick steel V-jaw plates for heavier mast and not easy to be bent, can strongly against winds and extreme weather to keep your device safe. [Widely Used Mast Clamp] Durable antnena pole mount that suitable for CB antennas, TV antenna, weather station, CCTV, starlink antenna, LED lamps etc. [Package Included] The package contains 12*steel V-jaw plates, 6*bolt, 24*nut. If you have any issues about it, contact us freely.