Military Strength Serve up a little unexpected art in your daily ritual whether it’s your morning caffeine, afternoon sweet tea, or late-night cocktail. Or maybe you need a party icebreaker? These coasters will serve as a great conversation starter. 4” diameter. Absorbent ceramic coaster. Cork backing: eco-friendly, stays put and keeps surfaces safe. Gift worthy: hostess, birthday, holidays, hard-to-please got-it-all types. Wipe clean with a damp cloth. Designed, printed, and packaged in the USA.