4 Black Reusable K Cups for Keurig Coffee Makers BPA Free Universal Fit Refillable Kcups Coffee Filters for 1.0 and 2.0 Keurig Brewers 4 black k cups hidden Made of high quality stainless Style:1 FT Made of high quality stainless steel 304 Rinse them immediately should the product comes into contact with them my reusable k cups have a unibody construction to ensure that the lid doesnt break like the way it does in case of cheaper options 0 k cup reusable coffee filters are a far superior choice to paper filters as they do not have to be disposed of after every use and each Reusable k cup is expected to make thousands of coffees