Package includes: 60 x Cooling Fan Damping Gaskets; can be used for up to five 140mm or 120mm fans Compatible with many popular chassis fans, such as NF-A14, NF-F12 or NF-S12A series Function: stick it on the 4 feet of the fan to reduce the resonance between the fan and the box. Extend the service life of computer accessories Note: easy to install, with back glue, strong adhesion, easy to peel, no residual glue, no loose silk, can be cut arbitrarily, etc Suitable for radiator fan, cold exhaust fan, chassis fan, etc