CoasterStone AS1990 Pam Absorbent Stone Coasters, Palm Trees, Multi-Colored Absorbent stone: Absorbs sweating or spilled drinks without making a mess. No more rings on your furniture or drops of your favorite drinks sitting on your tables or coasters. This functional soapstone material helps keep your home clean Furniture Protecting Cork: Cork backed to protect your furniture. These stone coasters will not slide on or scratch your tables. The natural cork backing also helps the coaster stay in place on your table if the table is bumped into. Coaster Set: Comes with four 4  inch coasters. All carefully placed in a printed box. Useful and beautiful gift! These unique designs are sure to be something they wont say they already have one of making these the ideal gift. CoasterStone coasters are the first truly absorbent coasters. We have years of experience and perfection of our design. The original company was founded in 1821 and then renamed Coasterstone in 1983. We are family owned and have a dedicated and talented team of designers in the USA. Each coaster is pressed onto the stone by hand using our proprietary printing process.