Unfortunately this is not true for the quality of the product, the Steckeradapterset of Brennenstuhl to.
Once the parts are partly provided with a strong ridge, this is ugly, the function not affected. Significantly more problematic, if the adapters are assembled incorrectly, so no electrical contact is made is. Very annoying it would have been if this had been noticed only in the holiday destination - fortunately I have the parts previously checked with continuity tester.
Repair Tip for technically gifted: the black cover bulges out slightly, the connector is not assembled correctly. Pry In this case, the cover with a small screwdriver, then move the plastic plate so that they engage in grooves of contacts and therefore this position safely. After clipping on the cover - finished. Goes faster than a complaint.
Actually, the quality of Brennenstuhl but should prevent such failures. For the average consumer this is an imposition. Thus, the star number reduced to three because the set in and of itself is very practical and versatile and a very stable impression makes (when properly assembled ...).