A complete set of anti-vibration/noise kit for your PC! Makes your case, fans and HDD/ODD's quieter during operation. HDD-screws 12pcs screws with rubber grommets to absorb vibrations from your hard drive or CD/DVD. Can be used with 3 and 2 HDDs. The kit contains 6pcs which is enough to mount of two drives. Fan-screws Instead of using metal screws to secure your fans, use these rubber fan screws! They help to absorbs the vibrations that can be forwarded from the fan onto the case. Compatible with all fan sizes. 12pcs long screws and 12pcs shorter screws are supplied. Case feet of rubber Replace your old hard plastic feet with these rubber case feet. They effectively decreases overall vibrations the case produces. Cable ties Untidy cables can impede airflow, so use these supplied cable ties to tidy those cables away. Not only will it increase the airflow through the system but it will also make you PC easier to work with. 20pcs cable ties are included.