First-class quality, haven't used it yet and hope I will never do.
Not a usable product at all - when you open the package, you find a hard lump inside where you have to try to pull something out with your fingernails. The product could not really be "pulled as a strip" from the package opened for testing, but everything was in one dumpling. It's scary to think that someone has to fight with something like this in a real situation. I think it is irresponsible to keep this product on sale.