CoasterStone art is truly absorbing! We are the creators of the first absorbent Coasters. We use a beautiful bone colored stone that is cork backed to prevent sliding and damage to furniture then packaged carefully in a printed box. Our unique Coasters are not sealed with any coating to assure that you get the most absorbent coaster. 4 ¼ inch diameter coaster suits most drinking glasses, tumblers, mugs and even flasks. CoasterStone offers the widest selection of art available in the marketplace. With over 2, 000 designs to choose from, CoasterStone can satisfy any style or preference. Coasters feature licensed artwork from nearly 50 artists, including Frank Lloyd Wright and Paul Brent. CoasterStone Coasters can easily be cleaned. Cleaning instructions are printed on every box of Coasters so you are able to keep your coasters working properly and beautiful for many years to come.