NesteQ RubberScrew Magnet - Fan Isolation Assembly Set The NesteQ RubberScrew Magnet effectively reduces the transmission of vibrations from fans. Install any fan with these innovative magnetic vibration absorbers instead of screws. Compatible with open-cornered fans (fans with a closed tunnel between the fan holes on each side are not compatible) Mount fans for CPU, graphics card and expansion cards Easy installation of large fans (e.g. 140mm, 200mm) even if your case is originally incompatible Extent of delivery: 6 x RubberScrews, 4 x Magnets, 4 x Rubber rings for magnets