Thirsty Rhino Merendo Stainless Steel Beverage Coaster (Square Set of 4) Sleek and thin stainless steel beverage coaster. 3 3/8 inches by 3 3/8 inches in size. Comes in a cool circular shape or a solid square shape. Brushed Stainless Steel finish with a durable foam grip. Ships in a set of 4 pcs