Durable and Dishwasher Safe: Made of 304 stainless steel mesh with BPA-free PP shell. Ensure complete safety while boasting a durable design that can be reused over time. Makes A Great Cup of Coffee: Side filtration instead of bottom filtration enhances the brewing intensity of coffee. Effective filtration technology extracts more flavor and aroma every time you brew. Also works well with paper filters and can be used in combination to reduce cleaning time. Economical and Save Money: Millions of disposable for K Cups are created every year, which is extremely harmful to the environment. Now you can brew your favorite ground coffee using these reusable coffee pods for Keurig. Widely Tested for Compatibility: The reusable k cup coffee filters (coffee pods) work with for Keurig K-Mini, for K-Mini Plus, for K-Slim (1-Stream), for K-Elite, for K-Classic, for K-Compact, for K-Latte, for K-Cafe (1-Stream), for K-Select, for K-Duo, for K-Duo Essentials and all for Keurig 2.0 & 1.0 coffee machines. They are also fit for Hamilton Beach K Cup, for Breville K Cup, for Mr. Coffee K Cup, and for Cuisinart K cup. NOT COMPATIBLE with for K-Express,for K-iced, for K-Duo Plus, and all for Multi-Stream Brewers: for K-Supreme/Plus/SMART, for K-Slim, for K-Cafe, for K-Brew+Chill, for K-Duo Hot & Iced. Specification:4PCS Colour:Black Material:plastic Package Contents: 4 x Reusable K Cups