Excellent question, there are many monitor arms which unfortunately do not rate well in terms of safety.

NeckDoctor for WALL is 3 times approved strength tested and fits 23″ to 55″ Television Screen size or Monitor,it extends upto 72- 466mm (2.8″ – 18.3″) which carries maximum screen weight upto 5 – 23kg / 11lbs -50.6lbs, your expensive TV and Monitor is important to us.

Caution:Please refer to the tip over instructions in your user manual.