this wall support is very ingenious. the fastening system is made for the "not good" DIY like me, you may miss when pierced, he virtually rule alone. This is fixed in 5 minutes. Superb idea that this level the TV is right without anyone to take the lead level to be paid, it is done as soon as the support is. Only drawback that prevents the 5 star: the document is not very explicit, however serve to understand each part of the box and therefore waste of time.