Fangrui Product Details Fangrui Product Details Easier With These Conical Exhaust Filters, Designed To Effectively Filter Out Dust And Impurities From The Air. Made From Quality Materials, These Filters Are And Reliable, Ensuring Long Lasting Performances. Suitable For Various Ventilation System, These Filters Are For Anyone Looking To Improve The Air Qualities In Their Living Space. Whether It Is In The Kitchen, Bathroom, Or Any Other Area With Frequent Air Circulation, These Filters Help Maintain A Cleaner And Healthier Environment. With Filters Included In Each Pack, It Easy And Cost Effective To Them Regularly And Enjoy Cleaner Air All Year Round. Colour:as Shown Material:filter Cotton Package Contents: 20 X Exhaust Valve Filter 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.