Usage Tips:COMPATIBILITY. This two ears portafilter 51mm compatible with for ECP3120/ECP3420/EC155/BCO430/EC260 etc 2 ears coffee machine. Get a perfect cup of coffee to start a day. FOOD GRADE 304 STAINLESS STEEL. It is made of 304 stainless steel, and has the characteristics of oxidation resistance, corrosion resistance, rust resistance and durability. SUBSTITUTABLE. 2 ears bottomless coffee portafilter include 51mm filter basket that is compatible with for 's stock 51mm filter basket. A GREAT HELPER FOR MAKING COFFEE. The bottomless design allows you to observe the flow column, flow velocity, color, and more intuitively when you extraction. To help you correct and improve your extraction problems. You will be a professional barista. REMOVABLE HANDLE. The handle of bottomless espresso portafilter is made of wood. That comfortable handle structure conforms to human mechanics principle, providing you with stable operation. Colour:As Shown Material:stainless steel + wood Size:51mm Package Contents: 1 * bottomless portafilter with filter basket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.