It's magic - or not.

We already have some products of WENKO and so far we are very pleased with the various holders, however, these were two articles with "Power-Loc" (special glue) and the "Vacuum-Loc" hairdryer holder. All three products meet fully their function and could be display clearly and permanently.
The toilet paper holder Biella Magic-Loc like us, in principle, if not one of the two suction cups would drop respectively after a short time, the others are holding very well. Also, a displacement of the entire holder gave the same result.
With only one functioning sucker unfortunately the whole holder is not reasonable to use, well that Amazon withdraws the product without problems.

Conclusion: From the Magic-Loc system, I am not convinced, it seems to be a fundamental problem with the quality / construction of the suction cups to give when I read the other negative reviews. Luckily, there are the same design with the Power-Loc system, except for the lack of adhesion of a suction cup of the toilet paper holder is in fact very convenient and still looks good, so two stars for that.