Quick overview from the supplier:
Wall Mount Reflecta PLANO Video Wall 70-6040, Display size 45"-70", Pop-Out Function
Wall mounting system especially for mounting large video walls with several flat screens.
+ suitable for mounting complex video walls with several flat screens up to 60“ and 45 kg of weight;
+ Pop-Out Funct;
+ great space saving;
+ anti-theft system;
+ fast and easy mounting.
https://reflecta.de/en/video-walls/187-reflecta-plano-video-wall-70-6040.html