A set of skull biker images featuring wings, moustaches and retro bike helmets. Perfect for your post ride beer (or tea). This set of 4 coasters have soft padded feet on the underside to protect your table and surfaces and are made from natural slate. 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 Skull Biker Engraved Natural Slate Coasters in Black Size: 4 Pack