1. WITH FILTER BASKET: The coffee portafilter comes with a stainless steel filter basket to help you make a better cup of exquisite coffee for most three-ear symmetrical coffee machines. 2. BOTTOMLESS DESIGN: The portafilter helps observe the flow column, flow rate, color, flow column streaks, etc., to find defects and errors before extraction and better judge the uniformity of extraction, resulting in a more flavorful and consistent coffee extraction. 3. STAINLESS STEEL: Bottomless powder container made of stainless steel, environmentally friendly and non-toxic, more hygienic and safer, with anti-oxidation and durable properties. 4. DETACHABLE: The coffee portafilter with a bottomless design is light and quick to disassemble and install, easy to use and clean without dead corners. 5. APPLICATION: The 3-ear coffee portafilter is widely used in homes, kitchens, offices, cafes, and other places. It is one of the essential tools for coffee connoisseurs and for making your own coffee.