[High Quality]Double U-bolts, double screw fixation made of 2 mm thick high quality aluminum,more reliable and more . Anodized treatment, can withstand strong winds and rain. [Used for]The whole set of accessories can be used for holding poles with diameters ranging from 1.1 to 1.97in (30-50mm). [Easy Installation]Mount Pole Hardware Accessories can adjust the installation angle to adapt to different angles of the room and plane, very easy to install. [Widely Usage]Mount Pole Hardware Accessories is meant for outdoor use and can be applied to building roof or wall, suitable for kinds of antennas. Colour: as shown Material: Metal Package Contents: 2 x Antenna mast bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.