16 blue anti-vibration pads for up to 2 compatible 14cm or 12cm fans Compatible with many popular Noctua fans such as NF-A14, NF-F12 or NF-S12A series (see Noctua. at website for detailed compatibility info) Pads minimise the transmission of minute vibrations while maintaining full compatibility with standard fan screws and most other mounting systems Blue colour for creating stunning blue/black themed builds with Noctua’s chromax or industrialPPC line fans Trusted Noctua quality backed up by 6-year manufacturer’s warranty