PERFECT MATCH TO YOUR KEURIG Brew fresh by using your own coffee grounds with our 1 oz capacity reusable K Cups Coffee Filters that are compatible for 1.0 and 2.0 Keurig models: B10, B30, B31, B40, B44, B50, B55, B60, B66, B70, B77, B77, B79, B100, B130, B135, B140, B145, B150, B200, K10, K45, K65, K75, K145, K200 (Before 2016) K300, K350, K360, K450, K460, K500, K550, K560, K575. DOES NOT WORK with Keurig Mini and/Keurig Cuisinart version and K155, K250, Keurig Mini (After 2016). PREMIUM QUALITY MATERIAL These heat resistant reusable K Cup ensure a much tighter and durable seal to avoid leaks or mess when in use. Its well-designed 304 stainless steel mesh features a double-precision filter engineered for an even water dispersion while capturing 100% of your coffee grounds providing a much better brewing experience.