About This Premium Material: The coffee filter is made of safe & food-grade 316 stainless steel, reusable and eco-friendly, rustproof and corrosion resisting. Fine polishing without burrs, won't scratch your hands. Keep the Brew Head Clean-- The espresso puck screen can effectively isolate coffee grounds from the brewing head, maintain cleanliness and hygiene, without affecting extraction and water flow pressure. Also make the coffee flow more balanced and stable. More Effective Extraction-- The portafilter screen is designed with reliable construction, 1.7mm thickness and 150 microns filtration holes, which let the water flow more uniform and Improve extraction rate. Reusable & Easy to Clean-- Simply rinse the espresso filter screen thoroughly with water after use, it can long lasting use for years. Say bye to disposable paper filters, let's environmentally friendly living. Great Addition for Espresso Brewing-- Our puck screen is compatible with most espresso machines, 51mm portafilter basket. It is widely used in homes coffee, offices coffee or cafes. Also an ideal gift of espresso machine accessories tool for coffee lovers. We also offer other 2 sizes of 53.5mm and 58.5mm espresso filter for selection. Overview Material : Stainless Steel Brand : BLIGKO Shape : Disk Number of Pieces : 1 Unit Count : 1.0 Count