Occasion: The 51mm bottomless portafilter is a great coffee machine part, a good helper for making coffee, great for cafes, restaurants, and home useFilter Design: Stainless steel filter basket, precision pore design, surrounding filter screen, evenly filtering coffee for professional extractionMaterial: 51mm 3 ears espresso portafilter is made of stainless steel, the handle is easy to hold and easy to control manuallyDetachable: The espresso machine has a convenient handle and can be disassembled quickly, making it more convenient to useGood Helper: The portafilter holder is convenient for checking the coffee extraction process and observing the coffee position, flows rate, color, etc Specification: Material: Stainless Steel Size Chart: Length: 23cm/9.06inchDiameter: 5.1cm/2.01inch Package Includes: 1 Bottomless Portafilter Note: Please allow slightly errors due to manual measurement and different monitors.