Get a cup of coffee ready for yourself in a Reusable Cup filter, transfer the coffee in another cup, wash the cup and prepare another flavour of a guest's choice. Continue the process until you have satisfied the cravings of all the guests or family members with widely different choices. without the need for any transition or cleanups in between.COMPATIBILITY - cup filters are unconditionally compatible with for Brewers and do not require any hacks. These are compatible with 2.0 and 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, K-Slim, K-Duo, K-Classic, K-Elite, K-Select, K-Cafe, K-Compact.Mini MESH TECHNOLOGY FOR SUPERIOR BREW - Our reusable k cup filters are made up of superior quality stainless steel -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 doesn't alter the taste or aroma of your expensive coffee in any way.DURABLE DESIGN THAT'S 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 doesn't 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 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.