This is a set of dark owls with a skull, engraved in-house on natural slate coasters. Perfect to protect your surfaces while enjoying a witchy or goth cppa.. The coasters have soft rubber feet on the underside to protect your table and surfaces. Coasters are 10cm x 10cm square Coasters are approx 3mm-6mm thick (without feet) and thickness will vary from coaster to coaster. Coasters are 120g approx weight As slate is a natural product it may contain fool's gold, which is natural pyrite that forms within the slate. It is not a defect and we cannot guarantee that your slate item will not contain it. Bad Zebedee Dark Owl & Skull Engraved Natural Slate Coasters in Black Size: 4 Pack