Features: brand new and high quality Made of high-quality PVC material, elastic, good resilience and exquisite workmanship. Convenient frame design for easy installation. Suitable for the home computer chassis fan dust, speaker grilles and a variety of electrical and electronic products speakers dust for protection. Help to keep your PC and PC components clean, minimize the noise from the fan and extend the life-span of your fan. Practical and useful computer accessory, can protect you computer from overheating, Can be helpful in keeping your computer components clean. frame just for iron and steel metal for case. For aluminum and plastic for case, please use screws to hold on. Specifications: Item Type: Dust Filter Material: PVC nylon Color: Black Thickness: 0.45mm aperture 0.8mm Suitable for: PC Computer Fan Chassis Size:approx. 3x3cm/1.18x1.18in, 4x4cm/1.57x1.57in, 5x5cm1.97x1.97in, 6x6cm2.36x2.36in, 7x7cm/2.76x2.76in, 8x8cm/3.15x3.15in, 9x9cm/3.54x3.54in, 12x12cm/4.72x4.72in, 14x14cm/5.51x5.51in(optional) Quantity: 1 PC Package Includes: 1 x Dust Filter note: No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!