United States Coast Guard Cork Coasters, USA, America, Military, Laser Engraved, Custom, Man Cave, Personalized, Beer These unique coasters are the perfect gift idea for any occasion. Weddings, bridal showers, housewarming gifts, anniversaries, and even holidays. Or add some flair to your home bar, engagement party, or wedding reception tables with these coasters. You can now not only protect your furniture but you can decorate it with these fabulous coasters. made from 1/4" thick eco-friendly material (cork), and measure 4" in diameter. The designs are permanently laser engraved into the surface.