Sleek and sophisticated, these naturally edged slate coasters are mounted onto velvet to protect counter tops and tables. Perfect for any occasion, use these coasters for all of your favorite beverages. Coasters are made of slate stone with protective backing. Makes a great hostess gift. Beautiful, natural piece for your coffee table or bar. Board has food safe finish – wipe clean with damp rag. All in all, these are coasters with a new touch of design.