With a three-step fixation system, this wall mount guarantees extra safe usage in environments like schools and other public utility buildings. First, the vertical brackets are mounted to the display. The wall mount back plate is then screwed to the wall. And for additional safety, the vertical VESA mount brackets can be securely fastened to the wall back plate with two extra fastening screws. Please note: for iiyama touch models we recommend using MD 052B1000