Mix and match coasters with an Ohio State University theme. The ceramic coasters are made with high-quality protective coating. Each coaster is 4.25 x 4.25 inches covered with Ohio State theme fabric. Coasters have a thick cork to protect surfaces. Great for all beverages hot and cold. Each coaster is slightly rough so the liquid doesn't roll off the coaster. Wipe clean with a damp cloth. Do not submerge in water, not dishwasher safe. Made in a smoke-free home. Welcome special orders.