High-quality materials: These coasters are made of silicone, which is heat and dirt resistant, flexible and elastic, non-slip and difficult to deform or tear, making them an excellent everyday helper. [Non-slip] The silicone coaster has a special non-slip surface. The base easily adheres to the table and provides a very firm grip, so you don't have to worry about your cup slipping or making any noise. [Stain-resistant] The ribbed design of the silicone coaster absorbs spills or condensation from cold drinks without causing spills, protecting your countertop from stains and damage. Size: The coaster has a diameter of 9.95 cm. It protects your countertop from grease and water stains and is dishwasher safe, making it very convenient and easy to clean. Wide range of uses: These coasters can be used in the kitchen, dining room and living room. They are suitable for glasses, coffee cups, cold drinks and some water containers to prevent your table from getting wet.