Food-grade material: Our #4 coffee filter paper is made of -grade wood pulp, free of fluorescent agents and bleaching agents, healthy and environmentally friendly, and keeps coffee pure Excellent taste: Our coffee filter can remove most of the oil, coffee particles and foam, say goodbye to sediment and keep the full flavor of coffee. PLEASE NOTE: Soak the coffee filter in hot water before pouring in the ground coffee, this will make the filter paper fit better EASY TO CLEAN: coffee filter means no need to clean after use, save your cleaning time, our coffee filter 4 cone paper is made of biodegradable and renewable resource paper, so you can simply clean it after use Take it off and throw it without worrying about the environmental impact UNIVERSAL AND APPLICABLE: The coffee filter is biodegradable, helps reduce environmental impact and water waste SAVE MONEY: Package includes 300 pcs cone coffee filters, meet your various needs, perfect for food service, home and office use, you can enjoy coffee anytime, anywhere Type: coffee filter paper compatible for Ninja CE251, , Dualbrew Pro System coffee makers Material: Filter paper colour: As shown Package Contents: 300 x coffee filter paper Only the above package content, other products are not included. Note: Light reflection 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.