Made from natural diatomite that is safe and chemical-free. Decorate your home spaces with our clean modern design coasters. Cup rest for cups, glasses, other pot holders, small plant vase base, cup stand, etc. Substitute for holding hot drinks or hot pots. Refrigerator deodorizing, dehumidifying closets. Absorbs water or moisture condensation from hot and cold drinks. Heat resistant and non-slip surface protecting your furniture and tale.