NCAA Michigan State Spartans Absorbent Coaster Four Pack Gift Set with Butcher Block Holder Spartan Helmet Durable cork backing protects furniture from scratching NatureStone Coasters are printed with vibrant permanent colors that continually absorb moisture. Four 4" absorbent stoneware coasters with a butcher block coaster holder makes the perfect gift Support your favorite team with these natural stoneware Absorbent Coasters