Features 1. Cost saving: The reusable coffee filter set includes 4 packs, each pack can be used multiple times. With our refillable K-cup coffee filter, you no longer need to purchase disposable K-cups made of paper or low-quality plastic! Our K-cup can help you reduce the cost of all brewing accessories, allowing you to make the most of your coffee bean purchases while maintaining environmental awareness! 2. High quality materials: Reusable coffee capsules are made of high-quality materials, including BPA free plastic and food grade stainless steel, which can be safely placed in the dishwasher and will not release harmful substances when brewed in hot water! The integrated design paired with a stainless steel heat-resistant mesh system helps you brew the best coffee. The interior design without edges also makes cleaning easier. 3. Environmental protection and safety: The reusable K cup not only brings you personal enjoyment, but also is extremely friendly to the earth. By reusing refillable K cups, you can reduce your carbon footprint while enjoying your favorite coffee. The interior design without edges also makes cleaning easy. 4. Easy to use: Our all-in-one single cup coffee capsules and built-in filter are everything you need. No additional adapters, components, or tools are required. Specification Capacity: 12g coffee powder Specification: 53 * 42mm Material: Food grade plastic PP+stainless steel 304 Package Include: 6 * K-Cups+Spoon Brush