Description If you are looking for professional qualitative filter paper, then your research is here. That's because our products can meet your needs. It is made of premium materials and craftsmanship, durable and practical, and can provide you with stable working performance. Features -Color:White -Material:Cotton fiber -Size:7.00X7.00X0.01cm/2.75X2.75X0.0039in -Round shaped design, lightweight and easy to use, simple to operate. -Excellent clarifying filter for cloudy suspensions and for water and soil analysis. -Applicable to a variety of scenes, such as chemistry experiment, labs, boiler water analysis. -Also great for use with filter plates, sintered disks, and Buchner funnels. -This qualitative filter paper set includes enough quantities to meet your needs. Package list: 200 x Filter Papers (7cm)