Beautiful bronze color geode style coasters. Set of 4 with each having a unique shape. Bronze, gold and white mica with gold broken glass center. These resin coaster are hand made and currently have an unfinished edge for a more natural look. One of a kind set. Great size-approx. 4 1/2 inch diameter and 1/2 inch thick. Because all resin pieces are handcrafted one at a time, they may have natural blemishes or variations that are inherent to the handmade process. Food safe and heat resistant to 165 degrees. Care: Hand wash as needed in warm soapy water and dry with a soft cloth. As a resin artist, I recognize that this is not the most eco-friendly medium. To balance this, I do my best to minimize waste during production, use recycled or compostable shipping materials when possible and even recycle some of the shipping materials I receive in products I order to pack some of my shipments, while still keeping the packaging and unboxing a pleasant experience. I hope you see this as a positive process of environmental responsibility.