Features: brand new and high quality Magnetic dustproof net designed for PC computer. Made of durable PVC material, easy to clean.Durable, dustproof net Magnetic design makes it easy to install. Keep your PC and PC components clean and prolong cooling fan's service life. Minimizes the noise from the fan Suitable for computer for case fan with optional size. Specifications: Type: PC Dust Filter Material: PVC Suitable for: Dual Fan Chassis Net Thickness: 0.45mm Magnetic Strip Thickness: 1mm Hole Diameter: 0.8mm Magnetic Stripe Width: 1mm Color Black / White Optional Size: approx 40mmX40mm/1.57x1.57in 50mmX50mm/1.97x1.97in 60mmX60mm/2.36x2.36in 70mmX70mm/2.75x2.75in 80mmX80mm/3.15x3.15in 90mmX90mm/3.54x3.54in 120mmX120mm/4.72x4.72in 140mmX140mm/5.51x5.51in 500mmX500mm/19.7x19.7in Quantity: 1PC Package Includes: 1 x PC Dust Filter note: Magnetic dustproof net can not absorb on aluminum made chassis. Due to different batches of production, product details may have slightly difference. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.