We have now bought the set twice, because the have not passed 6 pieces when we had guests. Originally they were acquired so that we do not have to put on the glass table and our glasses and these might scratch. Since 2.5 years, we have the first set is now in daily use of a two-person household. You still look good. What is slightly annoying, though, since they are made of glass, falling dirt very quickly. However, they can be cleaned very easily. The glasses used should the way a central position on the coaster, because at the bottom there are only 3 rubber studs. If you set the glass on a rubber studs vacancy on the edge, tilts the coaster with the glass. Also one should not interfere in the typical glass-on-glass sound when you want to buy this coaster.
Set 1 was purchased at the store, Set 2 on Amazon. Unfortunately, the rubber studs were, at least in our Amazon order slips under the coasters in part and had to be adjusted by us.
