Description: Rotation type design makes it well fit and prevents coffee powder from spilling out. Premium aluminum alloy material makes it sturdy, anti rust and corrosion resistant. Ear design makes it easy for hanging on the coffee machine and frees your hands. CNC machining and frosted design ensures wear resistance and comfortable hand feeling. Coffee dosing ring is made of aluminum alloy for sturdy construction and long-lasting durability. It is easy to clean with brush, sponge and dish-washing machine. The length of the product is 7.2cm, the width is 6.4cm, and the height is 3.4cm. The inner diameter is 5.8cm. It is compatible for the 58mm portable filter basket, this espresso gauge funnel is compatible with other models in the 875 840 810 8 series, and is suitable for Barista Express, for Barista Pro and for Bambino Plus and for Duo-Temperature Pro, etc. Item Name: Dosing Ring Material: Aluminum Alloy Features: Rotation Type, Rust Resistance, Easy to Clean Size Details: Size: 7.2cm x 6.4cm x 3.4cm/2.83" x 2.52" x 1.34" (Approx.) Inner Diameter: 5.8cm/2.28" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Dosing Ring