SUITABLE FOR 58mm Portafilter - designed to work with the tapered 58mm portafilter baskets as suggested in description, including the Breville, Rancilio, Gaggia, La Pavoni, Hamilton Beach, ECM, La Marzocco, Rocket, Alex Duetto, Astoria and all E61 group machines. AVOID MESS AND WAST- Coffee Dosing Ring stop wasting coffee and messing up your work top – with a coffee dosing funnel all the coffee goes into the portafilter basket, severely reduces the mess and difficulty in loading and tamping. 304 STAINLESS STEEL MATERIAL-NEOUZA coffee powder funnel is made of premium 304 stainless steel, non-rust nor corrosive, FDA grade material, safe to your family’s health. EASY TO CLEAN & USE- 58mm portafilter funnel is dishwasher safe, you just rinse it with water and clean it with brush or sponge; As for use, you simply place the funnel on the inner rim of your portafilter. Stop wasting coffee and messing up your work top – with a coffee dosing funnel all the coffee goes into the portafilter basket. Attach the coffee dosing ring to your portafilter and then grind directly into the basket without any mess or waste. For better consistency and better distribution use NEOUZA 58mm coffee dosing funnel. Perfect for home or espresso bar use. Please note "the portafilter won't fit into the Barista Breville's grinder with the funnel installed." Specifications: Material: 304 stainless steel,not any aluminum,chrome plated or alloy material Diameter: 58mm Color: Silver Weight:Appro. 110g