PVC dust filter lightweight, keep air circulation in the case to keep cool. Computer dust proof mesh with fine holes can provide efficient dust filter and keep the computer from overheating, keep the case fresh and clean. Computer fan dust filter help to keep your computer components clean and help to reduce the noise from the case fan. Nylon fan dust filter cover grills, easy to clean and replace. Two types, 9/12/14cm with reserved screw holes, easy to install, 8cm without screw holes. Fit for for home computer chassis fan dust filter, speaker grilles and other electrical item dust protection. Package Includes: 1 Piece Dust Filter 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!