Usage Tips: COMPATIBILITY. This two ears portafilter 51mm is compatible with ECP3120, ECP3420, EC155, BCO430, EC260, and other 2 ears coffee machines. Enjoy a perfect cup of coffee to start your day. FOOD GRADE 304 STAINLESS STEEL. Made of 304 stainless steel, this portafilter offers resistance to oxidation, corrosion, and rust, ensuring long-lasting durability. SUBSTITUTABLE. The 2 ears bottomless coffee portafilter includes a 51mm filter basket that is compatible with standard 51mm filter baskets. A GREAT HELPER FOR MAKING COFFEE. The bottomless design allows you to observe the flow column, flow velocity, and color more clearly during extraction, helping you identify and improve extraction issues for better results. REMOVABLE HANDLE. The portafilter handle is made of wood. Its ergonomic design provides a comfortable grip and stable operation, following human mechanics principles. Color: As shown Material: Stainless steel + wood Size: 51mm Package Contents: 1 x Bottomless portafilter with filter basket Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.