Not Just a Simple Brew - The new dual brew coffee machines and k cup coffee capsules do not simply extract coffee through water flow. They also brewing pressure during brewing, which is crucial in the process of making coffee. The concave top cover of this coffee capsule for ninja dual brew coffee maker perfectly fits the brewing head of the coffee machine, ensuring that the pressure will not leak, and providing the best coffee experience! Continuous Improvement - Not only we the top cover of the coffee capsule, we even found through experiments that the area of the stainless steel filter screen also affected the brewing experience. The current filter screen area is perfectly balanced with the release speed of water flow, greatly reducing the coffee splash, and will not mess up your coffee machine. Perfect Compatibility - According to the K cup pod adapter of the machine, accurate mold opening, truly compatible with Ninja CFP200, CFP300, CFP301(c), CFP305 and CFP400 Dualbrew Pro System Coffee maker. Material - All reusable coffee capsule for ninja coffee maker manufacturing processes are assembly line workshop production, food-grade materials, durable and safe. You will 4 reusable coffee pods compatible with Ninja Dual Brew Coffee Maker to make different flavors of coffee and friends. Colour:black Material:plastic Package Contents: 4 x coffee capsule filter Only the above package content, other products are not included. Note: Light reflection 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.