Re-useable Coffee Filters are more convenient and economical than paper filters. Always ready to use. No more running out of filters. Ecologically sound - no daily filter disposal. No more trying to separate a single filter from a stack of paper filters. Rigid shape makes them easier to fill with coffee and to insert in the coffeemaker than paper filters. Micro-fine filter openings retain coffee sediment while flavor and aromatic components pass through for optimum extraction and inchfresh brewed inch taste. Made of laboratory-grade materials. Dishwasher Safe. Fits nearly all full size coffeemakers using fluted basket or cupcake style filters.