Ultra Absorbent: The Stone Coasters by Momo Lifestyle are unlike any other coasters you have ever seen! The Drycup absorbs the water and condensation in minutes, so you don't have to worry about stains or droplets on your surfaces. 100% Organic: As we are committed to sustainable practices, our coasters are made from diatomaceous earth, a naturally occurring material, and are wrapped in recycled craft paper. The Drycup is also antibacterial and prevents bad odors, thanks to its organic composition! Non Scratch: Forget scratches on your tables or countertops! The composition of the Drycup is softer than wood or glass, protecting your surfaces from accidental scratches or scuffs. Slick Design: The Stone Coasters were crafted in a minimalist sea shell shape, making them a perfect addition to your dining table set! Easy Storage: The Drycup can be placed anywhere in your kitchen due to its slim profile and 4' diameter. Warranty: 1 Year (12 Months) from date of purchase.