Description: Features:brand new and high quality.Protects your internal components from dust and debris.Extremely effective for preventing dust buildup inside your PC for case.Keeps your PC clean and improves reliability.Convenient to install,r emovable front plate, back plate and middle filter, easy to wash.Durable plastic construction, black color, easy to clean, convenient to install.Holes design allows more airflow to pass through.A wonderful accessory for your PC for case fan. Specifications:Product Name: Fan Dust Filter Guard Material: Plastic Color: BlackSize: 4040mm / 5050mm / 6060mm / 9090mm (Optional)Quantity: 1 PC (other accessories demo in the picture is not included) Note:1.Transition: 1cm=10mm=0.39inch2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage includes: (No retail package)1 X PC for Case Fan Filter