Arkansas Razorbacks Assorted Tumbled Stone Coaster Set of 4, Highland Graphics Assorted 4-coaster set - a different image/design on each one. Made in the U.S.A. Each tumbled stone coaster is an approximate 3.67" x 3.67" square x 0.3" thick. Tumbled edge adds elegance and charm. Coasters are cork backed to protect your furniture & works well with either hot or cold beverages Cleans easily with mild liquid detergent and water. Rinse & air dry.