the a2/a3 articulating wall mount is the most versatile mount for flat panel displaysof 23" to 37". max loading weight is 80 lbs. vesa compliant:75 to 200x100. a nice cnc aluminum construction with the anode oxidation finish . the sleek aluminum design for a clean look can be assembled to the single wood stud wall and the concrete wall. the arm can be swiveled for 180 degrees and the head can be tilted for + 5 to -15 degrees. the tilt knob can be pulled out to readjust for the desired viewing angle without changing its tightness.