SuperAbsorbent and QuickDrying Made from natural diatomaceous earth, these coasters absorb moisture instantly, holding up to 24 times their own volume in water. Keep surfaces dry and from water rings by placing them under cold drinks, coffee cups, or pitchers. They dry rapidly after use, making them ideal for busy environments such as home kitchens, office desks, or bar counters. Sturdy and SlipResistant Design Each 4x4 inch coaster is equipped with four silicone pads on the underside to prevent slipping and protect surfaces from scratches. The irregular stone shape adds a modern touch to any setting while providing secure stability on wood, glass, or metal surfaces. Easy Maintenance and LongLasting Performance Refreshing the surface is simple — just sand lightly with the included sandpaper to restore its appearance. The diatomaceous earth material naturally resists stains and odors, ensuring a clean and hygienic experience without complicated upkeep. Versatile and Stylish Protection Suitable for both indoor and outdoor use, these coasters are for serving beverages, placing under potted plants, or adding a decorative element to dining tables, desks, coffee counters, or patio furniture. With their sleek white stone look, they combine everyday practicality with modern style. Practical Applications In the kitchen: Prevent water marks from chilled glasses or hot mugs. In the office: Keep your desk from spills while adding a professional touch. On the patio: Protect outdoor tables from moisture and heat during gatherings or casual dining.