This item is well made of premium paper pulp for practical use. The qualitative filter paper with medium flow rate and good particle retention can separate coarse and gelatinous precipitates from solutions to get the right properties. It is suitable for general chemistry applications. This product is small, light, and easy to carry, so you can take it with you wherever you go. Features - Color: White.- Material: Cotton Pulp.- Size: 7x7x0.1cm/2.75x2.75x0.04 inch.- This product can be given as a great gift for your friends and families. They will be very happy.- Made of material, it is durable and long lasting use. You can safe to use it.- This product is small, light, and easy to carry, so you can take it with you wherever you go.- The qualitative filter paper's good particle retention can separate coarse and gelatinous precipitates from solutions to get the right properties.- with good workmanship. Suitable for general chemistry applications.Packing list: 2 Box/200pcs x Qualitative Filter Paper