Suitable for 51mm Portafilters: The espresso dosing funnel is designed specifically for working with EC0680, EC0685 bottomless portafilter. Neat & Consistent Desktop: Are you tired of cluttered coffee work desks? Pls don't worry, this coffee dosing funnel prevents wasted coffee and keeps your work desk surprisingly organized. By using this dosing funnel, all coffee powder can be dropped into the 51mm portafilter basket accurately, which prevents coffee powder from splashing and helps mash the powder, and improves dose weight and shot consistency. It be a great helper to become a professional ! Food-grade Stainless Steel Material: Made of high quality 304 stainless steel, the espresso dosing funnel not rust and corrode, safe 's health. Easy to Clean: The 51mm dosing ring is made of high quality stainless steel, so you can put it in the dishwasher and clean it with a sponge when you're done. The high quality stainless steel material is and adds interest to your coffee life. Easy to