Premium coffee filters from the #1 coffee filter brand in the world * Contains patented flavor enhancing micro perforations for maximum flavor * Fits all 4 to 6 Cup electric cone drip coffeemakers and 1 cup pour-over style cone coffeemakers * Made from 60% Bamboo, a naturally regenerating resource with doubled crimped seal, guaranteed not to burst * Melitta makes an annual donation to American Forests Global ReLeaf ecosystem restoration projects to fund the replenishment of trees used in the production of its filters