Specification: Package Included: 4pcs Cup Coasters Material: Ceramic and Cork Dimension: about 10.2cm (4 inches) in diameter and 0.6cm (0.25 inches) thick Features: Ceramic Stone - Strong Water Absorption. The top can absorb coffee and water stains in 10-15 seconds. Non Slip Cork Base - Ensure your furniture does not get scratched or damaged. The Cork Base also means the cup coaster won't easily slide across the table but instead your coaster set will stay firmly in place on the table. Easy to Clean, just rinse it by water. Stubborn on ceramic topstains can be wiped by wet towel or brush. These coasters with beautiful colors perfect to add a splash of color to your home, office, bar. The brightly colored printed on the coasters add a fantastic flair to an ordinary space. Warm Tips: If dark drink splashed on the coaster, we recommend you to wash the coaster with soap and water immediately. The ceramic product may be damaged due to collision during transportation. If you find any broken, please contact us, thank you.