58mm Espresso dosing funnel suitable for most coffee machine handles,suitable for use at home or office a nice gift for coffee lovers. Magnetic design, espresso portafilter dosing cup can improve the stability and effectively prevent powder spreading. Portafilter dosing ringl easy to operate, easy to place powder, easier to observe powder volume. You simply place the portafilter dosing funnel atop of your portafilter while grinding, distributing and tamping, and removed funnel quickly when finished. Coffee Dosing Ring stop wasting coffee and messing up your work top, with coffee dosing funnel all the coffee goes into the portafilter basket, severely reduces the mess and difficulty in tamping.​