Description: brand new and high quality. Feature: Made of high-quality PVC material, elastic, good resilience, and exquisite workmanship. Convenient magnetic frame design for easy installation. Suitable for dust on fans in computer chassis, speaker grilles, and a variety of electrical and electronic products' speakers for protection. Helps keep your PC and PC components clean, minimizes fan noise, and extends fan life. Practical and useful computer accessory, can protect your computer from overheating, can be helpful for keeping your computer components clean. Magnetic frame only for iron and steel metal chassis. For aluminum and plastic chassis, use screws to fix. Dust filter only, other accessories demonstrations in the picture are not included! Specifications: Item Type: Dust Filter Material: PVC Size: 120+120mm/4.7+4.7in, 140+140mm/5.5+5.5in(Optional) Color: Black Suitable for: PC Computer Fan Chassis Quantity: 1 pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 1-3mm error due to manual measurement. Make sure you do not mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Dust Filter