Made of natural diatom mud and plant fibers, which is an environmentally friendly, non- and material, the small pores in the diatomaceous earth amazingly absorbent. Unlike traditional soap holders or bamboo trays that don't absorb moisture, our home sink evaporates moisture in minutes and keeps countertops clean and dry. Stainless steel feet with rubber bottoms lift the diatomaceous earth coaster base off the countertop and promote quick drying to reduce water spots on the countertop. Can be used in the bathroom for lotion, makeup tools and toiletries, in the kitchen for brushes and soaps, as a base for essential oils and candles, as home decor; Where the is dry.