Today a gift idea from the department: things that do not need the world. The glass markers are smart, but you have to know that they are only liable to glasses with smooth bodies, badly in round bodies and decors. On beer bottles's would indeed practical, but they are understood so on a large scale, so that remains too little space for the Haftis. There is no guarantee that the marker falls to 10-120 minutes, there is not (breathe beforehand helps), but while he's still lying around near the glass, he has his service as good as fulfilled. So please do not expect too much of it, but absolutely suitable as funny gift to a party.