High Quality Material: The coffee filter is made of stainless steel, and the filter frame is made of food grade plastic. Resistant to acid, alkali, heat, abrasion, soft and thick, good permeability, uniform precision, easy installation, high efficiency and long service life. You can buy with confidence. Easy to use: The permanent coffee filter can filter coffee directly, the permanent coffee filter is 400 mesh, the mesh is fine, the filtering effect is uniform, and the coffee is stronger and smoother. And the coffee filter has a plastic handle, you can easily adjust it when making coffee. Product size: the coffee filter diameter is 123.5mm, the bottom is 58mm, and the height is 85mm. Please ensure this product is suitable for your coffee machine before purchasing. Easy to clean: This coffee filter can be easily cleaned under running water and in the dishwasher. It can be reused and is very environmentally friendly.