Premium Material:The coffee filters are made of 100% coniferous protoplasm, natural material and unbleached to keep your healthy, filters of 100 packs. Advanced Design:It's made of paper,the texture is fine and , smoothness is good, no roughness. There are some oblique lines with a wave line from one corner of the paper to the other to enhance sturdy of paper. Functions:The cone coffee filter can fully extract the coffee at the bottom, good for 4-6 cups, it can reduce the damage to the flavor of coffee and keep the tast of coffee, also fast for filtering. Wide Arrangement: The coffee filter is great for drip coffee filters machine, electric coffeemaker, filter bowl, , . contact us if you're not what kind of coffeemakers suit for. Attention : The coffee filters are size in roughly the side diagonal is 3.74 inch, the bottom wideth 1.97 inch, the maximum top wideth 6.3 inch and center height 3.94 inch. Specification: Product Name: Coffee filter paper Type: Type 102 fan-shaped filter paper Specification: 100 pieces/pack Scope of application: American coffee maker, filter coffee maker, filter cup . colour:Brown Material:Paper Package Contents: 100 x coffee filter paper Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.