This Glutkiller are too light for their purpose and the exhibition space is too small. This makes them easy to fall and at least the purpose of avoiding soiling the fingers, is missed. In addition, acting very cheap. If they are, but they delete the cigarette. The open design is basically clever because Glutkiller thus not clog, unlike sealed. Really good would the shape of a truncated cone to increase the exhibition space and a production of brass for a more solid state. The inner diameter could turn 2mm smaller.