Material: The coffee filter is made of food-grade stainless steel, which is safe to use and will not rust. Role: Used for cold coffee filtering, making a perfect, smooth, and residue-free coffee. Wide application: The filter is suitable for most coffee machines, supporting Aile pressure, Haole pressure coffee machine, French pressure pot, etc. Penetration effect: Coffee filter has a filtration accuracy of 100-150 micrometre, has a longer service life than filter paper, and has excellent permeability. Easy to clean: Just make sure to rinse it off quickly after each use, and you'll find that the filter will look almost over the next few years. Colour: silver Material: stainless steel Size: 10cm in diameter (center edging) Package Contents: 4 * Coffee Filters