Magnetic frame design: The computer fan filter adopts a magnetic frame design, which is easy to install and disassemble; it only needs to be attached to the metal surface of the PC case for good dust resistance: the ultra-fine mesh cover and high-quality PVC mesh cover are extremely durable and reliable, helping Keep your computer and internal components free from dust High-Quality Materials: This computer fan filter cover is made of PVC and magnets, which can prevent your computer from overheating, reduce and minimize fan noise, and extend the life of your computer hardware. Home Items: Available Used for dustproof protection of home computer case fans, speaker grilles, and speakers of various electrical and electronic products, and can be cleaned with water and soap over time Type: Dust Filter Size: 12cmx24cm Material: PVC Color: Black Package Contents: 4 x Magnetic Fan Filters Only the above package contents, other products are not included. NOTE: Lamps and different monitors may cause the color of the item in the picture to differ slightly from the actual item. The measurement allowance is +/-1-3cm.