The Keygeek X Unikeys Purple Dawn switch is a switch that has been under development for more than one year. They are manufactured by Keygeek using the newest housing and stem molds which ensure reduced stem wobble, solid and clean bottom-out sound and feel, and subtle top-out sound. Unlike the older generation of Keygeek MX style switches, the current ones no longer sound "noisy". Specs and material-wise, The Keygeek Purple Dawn switch comes with a PA66 top housing and a blend POM stem for guaranteed smooth travel. The bottom housing is made of PBT +30% fiberglass and it definitely CLACK.    1 quantity = 10 switches  Switch Type: Linear Manufacturer: Keygeek Designer: Unikeys Stem material: L4 POM Blend Top Housing: PA66 Bottom Housing: PBT+30% Fiberglass Operating Force: 50±5g Bottom-out Force: 58±5g Pre-travel: 2.0mm±0.2 Total Travel: 3.6mm±0.2 Spring: 21mm single-stage spring Japanese wire Factory Lubed: Yes!