Product Description:Material: Stainless SteelColor: Silver;BlackSize: 7cm*7cm*3cmPackage Contents:1 × Coffee Dosing Ring 【Wide Range of Applications】: This coffee dosing ring is suitable for 51mm portafilter.【Exquisite Craftsmanship】: The portafilter accessory is impeccably crafted and comes without burrs or manufacturing defects. The aluminum material will not rust. Thanks to the small magnets, the ring sits perfectly and does not wobble on the grinder.【Avoid Waste】: The espresso dosing funnel is inserted into the portafilter and then sits firmly. Significantly reduces annoying dispersion of ground coffee by grinding directly into the portafilter. It is particularly useful with statically charged powder. 【Material】: This dosing ring is made of aluminum, stable and durable. (Fit for 51mm iron portafilter). It is ideal for coffee machine, easy to carry. 【Easy to use and wash】: With a little shake, the coffee can't fall out of the espresso funnel and be well distributed, then the dosing ring can be removed. It can be quickly cleaned with brushes, sponges, dishwashers, etc.