1. It can save about 8% of coffee . This dosing funnel prevents coffee grounds from spilling out of the tower. time you fill up, the excess coffee can be scraped into the grinding , ensuring the same amount, and even more surprising is that it can about 8% of the coffee 2. High-quality aluminum alloy material, more . more with customers. This coffee dosing ring is made of high-quality aluminum, which is durable, rust-free and corrosion-resistant, making your coffee making process healthier and . 3. Fits the style: This espresso dosing funnel is designed for 54mm filter baskets, compatible with 878 (870), 875, 840, 810, 8 series other models, suitable for Barista , Barista Pro, Barista Touch , Bambino Plus and Duo-Temp Pro 54mm filter baskets. 4. Easy to clean. Can be cleaned quickly with a brush, sponge, dishwasher, etc. Product Name:Aluminum Coffee Dosing Ring Type: Coffee Dosing Ring Size: inner diameter 54mm, outer diameter 62, height 35mm Applications: Coffee Tamper Accessories Colour:silver Material:Aluminum alloy Package Contents: 1 x Coffee Dosing Ring 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.