[Heavy Duty & High Quality] The Universal Wall or Pole mounting brackets are high quality mounts, constructed of solid steel! The double U-bolts fit around the pole and there is a u-shaped jaw piece with "teeth" that grip the pole to secure the bracket into place! There are 4 units in the package. These mounts held the camera in place with no swaying or shaking! And each unit allows for movement up and down or side to side! [Wall-mounted / Hold pole & Adjustable Angle] The mounts are well made and can be used in a of configurations. You can place the mount on a pole with the included U bolts or you can attach the mount to the side of a building or wooden post. The elongated mounting slots lend these mounts to mounting a of equipment. The swivel and tilt of the mounts allow for slight variations in mounting or mounting on an angle. [Universal Pole Mount with U-bolt] Double U-bolts, double screw fixation made of 2 mm thick high quality aluminum alloy,more reliable and more .Anodized treatment,can withstand strong winds and rain.This bracket is universal,are used to attach for Antennas,Wireless Bridge,AP,Security Camera,TV CB,Weather Station,Outdoor CPE to wall or a pole.Our Jaw V-bolts deploy a strong metal jaw that provide an even amount of force all around the mast in use and bracket when tightened. [Widely Usage] It is made with galvanized steel and anodized aluminum making it corrosion-resistant so they should be and reliable. The whole set of accessories can be used for holding poles with diameters ranging from 1.1 to 1.97in (30-50mm).And the Pole Mount Bracket is meant for outdoor use and can be applied to building roof or wall, suitable for kinds of antennas. Once the poles have been secured to the bracket the installation. Colour:Silver Material:Metal Package Contents: 2 * Mount Brackets 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.