Function: cut noise and strain on your PC desktop formula This Fan Mounts match FLANGE TYPE fan moldings Universal design: matches most fan Quick and simple to slot 1.rubber screws for open corner cooling fan. We use top class supplies so those rubber screws are softer and supply larger noise and vibration dampening. 2.compatible to mounting gap sized at 4.3 to 4.8mm diameter, extremely convenient for mounting and unmounting cooling fans, additionally large for decreasing noise and vibration brought on by cooling fans. 3.Be conscious of reasonably-priced imitators that use inferior materials and are very not easy to paintings with. color: black Material: Rubber Package Contents: 32* Rubber Anti Vibration Mount Screw Pin Rivet Only the above package content, different merchandise usually are not included. Note: Light and diverse displays can cause the color of the item in the photograph a little varied from the genuine thing. The size allowed error is +/- 1-3cm.