WS Cullinan Magnetic Switch Crystal Clear. Diamond Stable. Inspired by the Cullinan diamond, the WS Cullinan Magnetic Switch features an ultra-transparent polished PC housing, an innovative octagonal stem for exceptional stability, and a plastic-cored magnetic design that delivers crisp mechanical-like sound with brilliant RGB performance. Features: Linear MagneticTop Housing Material - PCBottom Housing Material - PCMagnet - N52Spring Wire Diameter - 0.30 ± 0.01mmSpring Outer Diameter - 6.65 ± 0.05mmSpring Length - 18.0 ± 0.5mmInitial Force - 35 ± 5gfBottom-Out Force - 45 ± 5gfInitial Magnetic Flux - 130 ± 15Gs (1.2mm PCB) / 115 ± 15Gs (1.6mm PCB)Bottom-Out Magnetic Flux - 750 ± 15Gs (1.2mm PCB) / 635 ± 50Gs (1.6mm PCB)Total Travel - 3.50 ± 0.10mmLifespan - 100 Million Keystrokes Factory-lubed 15 included in a pack