Choose between Rustic Travertine, Ceramic, or Sandstone. All stone coasters have a full cork backing. How are these made? We use a process in which the image/words are transferred to the stone via heat. There is no paper, mod podge or coating on our coasters. Your glassware will not stick to our product. The coasters are not dishwasher safe and should be wiped clean with a damp cloth. Please see below for description of each type of stone. ·TRAVERTINE - These are very Rustic, and most…