The fan finger grill can prevent debris such as hair from entering the fan system. Suitable for the cooling fan of computer or other appliances.SpecificationScrew Size: M5Material: MetalSurface Treatment: Chrome PlatedDiagonal Hole Distance: 178mm / 7 inchParallel Hole Distance: 125mm / 5 inchPacking List: 4 x Fan Finger GrillAdvantagePackage comes with screws, no need to find screws everywhere when installing.This fan finger grill not only ventilate and can be dustproof, and it can help extend the life of the fan.InstructionFix the fan finger grill to the fan, then fix it with screws.NOTE: Please measure your fan size and select a suitable grill guard.