Granted, the thing is with a diameter of six centimeters not necessarily filigree liable by the relatively large adhesive surface for bombproof. The processing affects quality and thus differs significantly from the cheap plastic processing other manufacturers. And importantly - successful design manages to adapt to the existing rule, and already installed quality other bathroom fittings. Defects such as scratches or uneven processing / coating I can not confirm.
Conclusion: saves tedious boring work, in addition to the way to the hardware store and glued in seconds at the desired location. Buy recommendation.