From MacKenzie-Childs, the Check Cork Back Coasters, Set of 4 features: Find a home for every delicious cocktail with these bold Checked Cork Back Coasters. Features a heat-resistant surface finished with a layer of cork to help protect your tabletop and easily wiped clean, this set of four easily upgrades your happy hour with our popular pattern. MDF with cork backing Set of 4 - each measures approx. 4.1" x 4.1" Wipe clean with damp cloth Pieces may vary due to the handmade nature of each product Imported.