Core Bamboo Glossy Finish 7-Piece Round Bamboo Coaster Set, Onyx Set of 7 includes 6 round bamboo coasters and 1 bamboo holder; measures 4.3-inch diameter by 2-inchhigh Made with premium, hand selected bamboo; 100-percent organically grown Onyx color in glossy finish Clean with warm soapy water or a damp cloth 100-percent food safe and fda approved; meets european standards