It is easy to install and adjust camera position.Rotatable the square screw to tighten the holder.Standard size is compatible with most surveillance tool like CCTV Camera, DVR Camera, etc.This CCTV Camera stand is suitable for indoor, outdoor wall and ceiling mounting.Product Name: CCTV Camera Wall Mount BracketMain Material: MetalSwivel Angle: 120 DegreeBase Diameter: 88mmMaximum Height: 230mmTop Thread Diameter: 6mm/ 15/64 inchBase Mounting Hole Diameter: 5 x 6.8mm / 0.19 x 0.26 inch (W x L)Color: Silver ToneNet Weight: 76gPackage Contents:1 x CCTV Camera Wall Mount BracketOnly the above package content, other products are not included.Note: Light 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.