A break from the standard wooden coaster, a bamboo coaster speaks volumes to the natural, sustainable values the brand engraved on it promotes. Bamboo is often mistaken for a tree, but, is in fact a grass. That gives it a unique grain that is both elegant and natural looking. It is also naturally anti-microbial, containing bamboo kun, an agent that it produces to protect itself from harmful microbes and fungi. This set of 4 gorgeous round coasters include rubber feet to protect all fine surfaces from scratches, along with a beautiful round stacking stand. As a natural product, tone variations may occur. Hand washing is recommended.