This drying mat has self-draining smooth slopes. Allows users to air dry hand-washed dishes, utensils, glasswares, cookwares, milk bottles and more. Made of 100% antimicrobial food-grade silicone, this drying mat prevents the growth of germs, mold and mildew. Rinse with warm water, mild dish soap, an antimicrobial food-grade silicone, this drying mat prevents the growth of germs, mold and mildew.