Marky Mark and the Funky Bunch used to sing about Good Vibrations. Well, when it comes to case fans, there is no such thing as Good Vibrations. That is why it is always a good idea to use these Fan Vibration Dampeners. They are made of 100% genuine rubber, ensuring that vibrations will not exist. Simply attach one of these dampeners in between the case and the fan and say goodbye to noisy and damaging vibrations. So pick up a few of these dampeners for your case fans. Unless your into things that vibrate, which in that case, in the words of Marky Mark "Come on, come on!"