Features: Brand new and high quality. Effectively improves extraction efficiency High tenacity fibers are fine and uniform without agglomeration The paper is fine and good toughness, which can prevent the flow of small coffee grounds and extract pure and fragrant coffee. The filter paper can be placed at the bottom of the powder bowl and above the pressed powder at the same time, which can effectively improve the extraction rate Helps the powder cake to be better formed and reduces the channel effect caused by extraction to improve the yield The filter paper is placed on the top of the pressed powder, which can disperse the water flow of the brewing head and make the water flow more uniform. Less spray of coffee liquid, very few fine powders in filtered coffee liquid Specifications: Material: Raw wood pulp Color: White Size: 51mm, 53mm, 58mm Quantity: 100pcs Weight: approx.12g Package list: 100 x Coffee Filter Papers Note: Other accessories demo in the picture is not included. Please be sure to verify the size before you order the item. Please refer to the measurement. Tiny measuring error is allowable in normal range.