The signature deep sound provides a pleasant thocky sound out of box with a thin layer of factory lubrication. The switch features our custom Nylon (Pro) stem, a PA12 blend top cover, and a PA6 bottom housing, creating a unique material combination. Maintaining the classic and nostalgic 4.0mm total travel, the 22mm spring ensures a responsive feel without any mushiness. 5-pin and fits keycaps with standard MX structure.