From the Thirstystone collection of sandstone coasters. Four Piece Gaming Coaster Set. Includes four naturally absorbent game themed sandstone coasters. Set includes 1 coaster each of Texas Hold Em poker, Black Jack, Dominos, and High Roller dice. Each coaster features retro-themed colors and distressed edges to make them look old and well used. Each coaster has a natural cork backing to protect furniture and measures approximately 4" across. The natural absorbency of Thirstystone's sandstone made Thirstystone Coasters a best seller virtually overnight. Thirstystone quarries their sandstone in the Southwestern United States using the most environmentally conscious methods. The massive sandstone boulders are crafted into 3/8" thick disks, then Thirstystone's full color artwork is printed on the surface using state of the art printing technology developed by Thirstystone that will not wear off. Due to the unique nature of this naturally porous sandstone, markings, variations, and irregularities in shading, color and texture are natural and characteristic of the stone, adding to its natural beauty.