Inspired by the traditional Norwegian folk art, rosemaling. The images are developed using a transfer medium onto natural travertine tiles, 4"x4", which reveals some of the natural stone coloring, and the porous crevices. Due to the individual stones, no two coasters will be the same. Discoloration and imperfections are part of the weathered, handmade antique look. Given the nature of travertine stone, these tiles are very durable, and sealed with a varnish to protect the image from hot and cold beverages. DO NOT USE with hot pots and DO NOT WASH in the dishwasher. Please clean with a damp cloth when needed. Each coaster tile is backed in cork. Due to high demand, please allow 2-3 weeks for production time. Thank you. * Add rushed shipping listing at time of purchase to process your order up to 5 days faster! REFUNDS: Since all coaster sets are handmade and custom, only full refunds will be honored BEFORE items are in production. Partial refunds (less the cost of shipping and labor) will be honored for unsatisfactory products on a case by case. Please note discoloration and imperfections are part of the finished product and should be expected as part of the unique, worldly charm of each coaster set. ********************* THIS LISTING IS FOR ONE COASTER SET*************** These four coasters make wonderful housewarming or hostess gifts and are an elegant addition to any coffee table. Custom orders and shipping requests are welcome.