Usage Tips:_This is a set of filter, which is made of high-quality materials, which will not be damaged. Needle Filter widely used in sample pre-filtration, clarification, removal of particles, liquids and gases. filter& 39;s housings are specifically designed to maximize sample recovery._Features_- Color: Transparent and blue._- Material: Plastic._- Size:_3.00X3.00X2.00cm/_1.18X1.18X0.79 inch._- Diameter: 25 mm._- Aperture: 0.45 um._- Professional and practical design with beautiful appearance, easy to carry and use._- filters are broadly used in filtration of general organic solvents and aqueous solutions._- filters have membrane, the naturally hydrophilic, high dirt loading capacity are natural advantages._- filters with extremely high filtration capacity and unique threaded interface design._- Fine workmanship and creative appearance ensure its popularity and practicality.Packing list: 10 x Filters