Nano Filter: This bottomless portable filter provides a clear view of the extraction process, helping you observe the flow column, flow rate, color, and find flaws and mistakes before extraction. Helps you make delicious espresso. Wide Compatibility: The thickness of the 2 ears is 4mm. This 51mm bottomless portable filter is compatible with ECP3420/EC155/BCO430/ECO310/BCO420/BCO311/EC152/EC200/ECP3630/ECP3220W/ECP33.21 etc. The thickness of the 2 ears is 4 mm. If you have any questions about the product, please to contact us. Stainless Steel Material: This espresso coffee maker is made of food-grade stainless steel and hand-crafted high polishing, which is more hygienic and . Equipped with a double shot basket with small holes designed to filter coffee grounds more evenly and efficiently. The ABS handle looks great and is comfortable to hold. Removable & Easy to Clean: The bottomless portable filter is easy to use and can be completely disassembled for cleaning without dead ends. The handle is easy to clean and can be disassembled freely, and the handle of different materials can be easily replaced, allowing you to experience the fun of DIY. It is an perfect coffee accessory that last for a long time. PLEASE NOTE: Product dimensions are 8.3inch x 2inch, and the thickness of the 2 ears is 4mm. It is one of the must-have tools for every coffee lover and homemade coffee. A wonderful gift for friends who love coffee, bring convenience to your friends Item Type: 51mm Portafilter Size: 8.3 x 2.75 inches Weight: 0.7lb Colour:As Shown Material:Stainless steel+ABS Package Contents: 1 x bottomless portafilter 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.