Get a cup of coffee ready compatible with yourself in a Reusable Cup filter, transfer the coffee in another cup, wash the cup and prepare another flavour of a guests choice. Continue the process until you have satisfied the cravings of all the guests or family members with widely different choices. without the need compatible with any transition or cleanups in between.COMPATIBILITY - cup filters are unconditionally compatible with compatible with Keurig Brewers and do not require any hacks. These are compatible with Keurig 2.0 and Keurig 1.0 Brewers: K10, K15, K40, K45, K50, K55, K60, K65, K70, K75, K79, K130, K140, K145, K150, K155, K200, K250, K300, K350, K400, K425, K450, K475, B31, B40, B44, B45, B50, B60, B65, B66, B70, B71, B76, B77, B79, B130, B140, B145, B150, B155, B3000SE, Keurig K-Slim, K-Duo, K-Classic, K-Elite, K-Select, K-Cafe, K-Compact.Mini MESH TECHNOLOGY compatible with SUPERIOR BREW - Our reusable k cup filters are made up of superior quality stainless steel micro-mesh which is engineered to ensure an flow rate of water through the coffee - this helps extract maximum flavours from your coffee. Moreover, the food-grade stainless steel is non-reactive and doesnt alter the taste or aroma of your expensive coffee in any way.DURABLE DESIGN THATS ECO-FRIENDLY - 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. This also means that our filters prove to be more cost-effective in the long run. Besides this, 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.Colour:blackMaterial:plasticPackage Contents:4 * k cup refillable cupOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.