[Easy to use]: Our 4-piece refillable K-cup is easy, without changing the for Keurig filter holder or making any kind of modification, it can be seamlessly installed in every for Keurig or any other beer machine.[Quality]: These for Keurig K-Cups are made of high-quality materials, 100% BPA-free, Our kcup filters are 100% dishwasher-safe.[Environmental protection]: By using our 100% BPA-free reusable k-cup for Keurig, you are helping to reduce the costly environmental waste caused by disposable, pre-filled and non-recyclable plastic coffee bags.[Save money]: These refillable capsules (reusable k-cup filters) for Keurig coffee machines allow you to save up to 80% compared to pre-filled and pre-made, store-bought coffee pods.[Compatible]: for Keurig 1.0, 2.0 (the old model sensor may not be able to read the cup. Please return it for a refund in time) Model: K200, K250, K300, K350, K360, K450, K460, K500, K550, K560, K15, K11, K40, K44, K45, K50, K60, K66, K70, K77, K80, K100, B31, B40, B44, B50, B60, B66, B70, B77, B100, B140, B200.size:5.1x4.7x3.7CMMaterial:PPcolour:blackPackage Contents:4 * Coffee cup filterOnly 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