Diatom Mud Coasters, Crafted From 100% Natural Diatomaceous Earth, Features a Unique, Porous Structure That Allows It to Quickly Absorb & Dissipate Liquid Spills, Keeping Your Surfaces Dry & Protected From Water Rings & Stains. the Heat-resistant Properties Make It Perfect for Placing Hot Cup & Mug Set, Preventing Heat Damage to Your Furniture. They Are Also Easy to Clean & Maintain, Simply Wipe Them Down with a Damp Cloth or Wash Them Gently by Hand. These Coasters Are Designed to be Both Stylish & Functional, Whether Youre Looking to Protect Your High-end Table, Add a Decorative Touch to Your Daily Life, or Simply Want a Practical Solution for Spills & Heat Damage, Our Diatom Mud Coasters Are the Perfect Choice.