Core Bamboo 7-Piece Modern Bamboo Coaster Set Set of 7 includes 6 modern round bamboo coasters and 1 bamboo holder; measures 5-inch diameter by 2-inchhigh Made with premium, hand selected bamboo; 100-percent organically grown Set of coasters comes in a neat case that makes them easy to store Clean with warm soapy water or a damp cloth 100-percent food safe and fda approved; meets european standards