The article itself is quite praktisch.Konnte not try each part so far, but the one I had previously tested were good. However, I'm pissed at Amazon. In the description of what was a goggle in it, but when the delivery has been no glasses here. Then I had me complained to Amazon and they wanted to send me a goggles. Days passed, nothing has been done except that they had suddenly changed the description, the goggles was suddenly mentioned nowhere more. So I complained again when in customer care. Unfortunately, even after a year did not happen, that's what I call customer service. It is just ripped. Thanks Amazon.