Easily protect your bars and tabletops with these Non-Slip Black Silicone Coasters. Equipped with non-slip top and bottom surfaces, these silicone drink coasters create a sturdy grip to hold and secure drinks in place. Their slightly raised edges easily contain condensation and minor spills, while their smooth surface prevents moisture and bacteria from getting trapped inside. Manufactured from food-grade silicone, these unique drink coasters are conveniently dishwasher-safe and reusable. These beverage coasters feature a stylish circular shape and a sleek black finish. Each of these black silicone coasters measures 4 inches in diameter. Sold in a 6 count box.