Our gold permanent filter coffee filter is very standard, the diameter of the mouth is 120mm, Dimensions: height about 9cm The longest diameter of the opening: about 12.5 cm Short opening diameter: about 11.5cm Bottom length: about 6cm Bottom width: about 2.5cm. Premium Material: Our coffee filters are made of 304 stainless steel and food grade PP plastic (BPA free). With temperature resistance, wear resistance and other properties. Good water permeability, smooth and stable precision and long service life. Filter function: the coffee filter mesh can filter coffee directly, with a simple process, good permeability to water, high efficiency and more uniform coffee filtration. The filter net is 100 mesh, the mesh number is good, the filter effect is better, and the perfect filter effect can be achieved. Reusable: Just wash under running water, the permanent coffee filter is reusable, it is more eco-friendly and economical than paper filters, which can save you a lot of money. Champ Application: Suitable for commercial coffee machines, manual coffee filters and ceramic filters. Particularly suitable for filtering coffee in homes and cafes.