8 Pack Coasters - Drink Coasters - Black Coasters Slate Coasters - Round Coaster Set for Drinks, Beverages, Wine Glasses - Genuine Slate 4 Inch Diameter Coasters with Rack Holder Includes a set of 8 round slate coasters with a convenient holder Soft padded buttons at the base to ensure your tables wont be scratched Conveniently helps keep perspiration and stains off your tables and surfaces Easy to clean with soft damp cloth. Do not use in dishwasher. Measurements: 4" diameter Stand: 3" x 3" x 3.5"