JCW Rustic Decorative Solid Oak Drink Coasters, Penny Design, Set of 4, Hand Finished 4 piece coaster set made in the United States! Hand crafted for a rustic yet sleek design Each coaster is made from solid oak with a crystal clear, glossy, protective food safe finish Measures 4 1/8 inches in diameter Beautiful, natural coloring with unique penny design Not made for dishwasher or microwave use. Wipe clean with mild soap and water using damp washcloth