Allowable weight: Max. 3Kg Recommended monitor size: 9 inch Operating Temperature Range: +10℃ to +40℃ Recommended installation: M4 countersunk screw (Holes on the mounting side should be deburred.) Set this hinge to the center of objects (monitor etc.). This is for floor use, or hanging use. Do not install the hinge on the wall surface. Make sure to use anti-drop wires when hanging it. Do not adjust the torque. See the page "Specification of Friction Hinge (Free Stopping Hinge)".