Function: reduce noise and stress on your PC desktop systemThis Fan Mounts fit FLANGE TYPE fan moldingsUniversal design: suits maximum fanQuick and simple to fit1.rubber screws for open nook cooling fan. We use premium materials so these rubber screws are softer and provide higher noise and vibration dampening.2.compatible to mounting hole sized at 4.3 to 4.8mm diameter, extremely handy for mounting and unmounting cooling fans, also tremendous for decreasing noise and vibration attributable to cooling fans.3.Be conscious of reasonably-priced imitators that use inferior materials and are very difficult to work with.color: blackMaterial: RubberPackage Contents:32* Rubber Anti Vibration Mount Screw Pin RivetOnly the above equipment content, other products are usually not included.Note: Light taking pictures and diversified reveals may cause the colour of the thing within the photo a bit diverse from the genuine thing. The size allowed error is +/- 1-3cm.