Round Black Coasters 500 ctPut cocktails and beverages on a pedestal of their own with the classic Round Black Coasters. The 4 inch round heavy paperboard coasters are perfect for serving in restaurants, pubs, hotels, and at catered events. Each high quality coaster measures 4 inches in diameter and features a classy jet black surface on both sides to deliver a sophisticated scene at any bar or tablescape. Round Black Coasters are sold 500 per case.