CARE OF RESIN ITEMS  The resin used in coasters is heat resistant only UP TO 70 degrees Celsius  Wipe clean with a lightly dampened cloth only  Never wash or use harsh chemicals or abrasive cloths  Not dishwasher safe these are handmade in Australia using Australian supplies. Love and attention have gone into every set. Due to the nature of working with resin and climate and being handmade, there may be some minor imperfections such as; microbubbles, rippling.  It is advisable to store resin products out of direct sunlight as too much heat can cause the resin to discolour and/or soften and warp.