No eye candy, but practical and adjustable.

This thing looks just not as great, therefore you have to simply hide bisserl, but it is also small and unobtrusive enough. In addition, it can be wonderfully placed with the Saugnapft and remains even where one has hingpappt it.
FYI, the bubbles come out of the white circle, and not out of the slot, which is supposed to regulate the Blasenröße. The further one missile? There the finer the bubbles.
It is precisely this adjustment for me was also the reason why I've bought these things. For my Kleinstaqurien I needed something that really can be very fine bubble. All in all I am satisfied just to the optics.