Quality Material: The coffee filters are made of 100% North American conifer protoplasm, natural and unbleached materials to keep your filters healthy and total 100 packs. Advanced: It is made of imported paper, the texture is fine and smooth, the smoothness is good, no roughness. There are oblique lines with a wave line from one corner of the paper to the other to improve the robustness of the paper. Functions: The conical coffee filter can fully extract the coffee at the bottom, for 4-6 cups, it can reduce the damage to the coffee flavor and keep the taste of coffee, also for filtering. Wide Arrangement: The coffee filter is perfect for drip coffee filter machine, electric, filter bowl, etc. Please contact us if you are not sure which type of coffee maker is suitable. Attention please: The coffee filters a size of about the side diagonal of 3.74 inches, the bottom width of 1.97 inches, the maximum width of 6.3 inches and the center height of 3.94 inches. Specification: Product Name: