Cardboard coasters are disposable, impermanent, fleeting. But on top of all that, they really just don't look great. These slate coasters, however, will look great and last forever. (And their velvet-backing means your table-top will last forever, too.) Additionally, you can use chalk to write the name of the drinker using it, so you'll never have to wonder whose glass is whose.
(L)4" x (W)4"
Velvet-backed slate
Set of four