[High quality]Made of durable and corrosion-resistant Steel plate, this pole mount bracket can withstand the weight of most surveillance cameras. [Easy Installation]Suitable for indoor, outdoor, top, wall and ceiling mounting. Adjustable mounting angle is very convenient. High quality material also ensures durable and stable performance. [The Adjustable Loop Diameter]Adjustable ring diameter: The two rings of the wall-mounted vertical bar mounting bracket can be adjusted up to 200mm in diameter, loosen the screws and adjust the size you want, locking securely with the included screws. Used as an adapter to allow the user to mount any size vertical bar. Material:Steel plate colour:Black Package Contents: 4 x Pole Wall Mounting Bracket 8 x 200mm hoops 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.