Description: Magnetic PC Fan Cooling Dust Filter Cover: Made of durable and quality PVC with Magnetic Edge, easily adsorbed on the ventilation holes of the power fan. Practical Cooling Guard: Easy to clean, do not rust. Desktop Computer Dust Screen: Dustproof chassis cooling guard ,blocking all kinds of tiny dust, keep your computer fans and computer parts clean. Chassis Cooling Net: Mesh diameter 0.5mm(Dense Version)/0.8mm(Normal Version), which can facilitate ventilation, reduce the temperature of computer cabinet and fan, effectively protect the electronic components. Wide Application: Suitable for desktop computer fan, home computer chassis fan, speaker grilles, power supply, cabinet, radiator, etc. Specification: Material: PVC + Magnetic Edge Net Guard Thickness: 0.45mm/ 0.02inch Mesh Hole Diameter: 0.8mm (Normal)/0.5mm(Dense) Size (Square): Approx. 12x12cm/ 4.72x4.72inch Size (Square): Approx. 14x14cm/ 5.51x5.51inch Size (Rectangle): Approx. 12x24cm/ 4.72x9.45inch Size (Rectangle): Approx. 12x36cm/ 4.72x14.17inch Size (Rectangle): Approx. 14x28cm/ 5.51x11.02inch Package Includes: 1 Piece Magnetic Cooling Fan Dust Filter(4 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!