INVES Soporte mural para TV LCD / LED Inves I-20 A #INVES

I have a Lg television. From last few weeks I was looking to find a wall mount tv articulating arm to hang my tv on the wall. At last I bought a product - Soporte mural para TV LCD / LED Inves I-20 A - of a company INVES from a Supermarket El Corte Ingles in 22.90 euro. I open the packet, see the product and read the manual and instructions which I show in this video.

https://youtu.be/uo3kxmijEis