Feature: 1. PVC Material: Made of superior PVC materials, strong and can effectively filter out dust particles, ensuring the smooth operation of your computer cooling fan. 2. Magnetic Design: The computer cooler fan dust filter adopts a magnetic design, making it easy to install and remove without leaving dusts or damaging your equipment. 3. Ventilation Design: It has a ventilation net with a right angle frame, which can ensure the smooth ventilation of fan and effectively reduce the noise caused by wind resistance. 4. Size Compatibility: With a size of 120x240mm, this dust filter fits most standard fans in the market, providing a protective layer for your computer fans and prolonging its lifespan. 5. 2PCS Set: The package comes with 2 pieces of ultra fine holes dust filters, easy installation and practical, a great addition to maintain your computer's functioning best. Specification: Item Type: Computer Cooler Fan Dust Filter Product Size: Approx. 120x240mm / 4.7x9.4in Gross Weight: 75g/2.6oz Material: PVC Whether There Is A Magnetic Function: Yes Installation: Magnetic Adhesion Scope of Application: for PC Chassis Power Supply, Fan Vents. Package List: 2 x Computer Cooler Fan Dust Filter Note: All data are measured manually, and there are certain errors in the measurement results.