The cover design is widely compatible with Keurig 2.0 and 1.0: K200, K250, K300, K350, K360, K400, K450, K460, K500, K550, K560, K15, K31, K40, K40 44, K4 5, K50, K60, K66 , K70, K77, K80, K100, B31, B40, B44, B50, B60, B66, B70, B77, B100, B140, B200 and below: Keurig Select, , Keur. ig Ultimate, Keurig Platinum. Breville platinum K-cup. But not compatible: Keurig mini, Keurig K-Supreme, K-Supreme Plus, Keurig K-Supreme Smart, K-Slim, K-duo, K-duo Plus, K-Express. The reusable K-Cup is made with high-quality 304-grain mesh. This reusable K-cup is sturdy and has a tight lid, and you'll taste coffee like never before! Reusable and save up to 80% on more expensive regular K-cups. Refillable K-cups come with airtight lids to ensure reusable K-cups won't leak and keep your home clean. The reusable K-cup is great to use, just add the ground coffee you need to the reusable K-cup, after use just dump the grounds in the trash, rinse with water - cup filter . These refillable single K cups are also dishwasher safe