I use EcoPoxy brand resin, which is plant-based and biodegradable. These coasters contain a variety of different seashells and sea life, including starfish/sea stars, sand dollars, abalone shell pieces, scallops, and other shells. They are made of casted clear epoxy resin and have a very slight blue mica sparkle to them. Bumpers are included on the bottom to prevent scratching. They are super light weight and very durable. All shells/items within the coasters are hand picked and arranged…