51/53/58mm Espresso Dosing Funnel Stainless Steel Coffee Dosing Rings. 1x Coffee Dosing Rings. Safe Material: Made of premium aluminium alloy, non-rust and anti-corrosion, material, your family'. Clean and Use: You just with water and with brush or sponge; As for use, you simply place the funnel of your portafilter while grinding, distributing and, and removed funnel quickly when finished.
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