The HMX Sonja HC switch, or you can call them the Sonja Hardcore version, comes with customized stem and housing for a nostalgic rail bottom-out and scratchy feeling. Consider these a more OG version of the Sonja switches. If you like Sonja but want something that's even scratchier with a heavier spring, Sonja HC is your go-to choice. Factory lubing: Sonja HC switches are lubed using the same method as Snow Crash switches; only the leaves and springs are factory-lubed. Leaves are lubed with a thin coat of 205g0 and 105g0 mix, and springs are lubed with dry-film. The stem, bottom housing, and top housing are all dry.   1 quantity = 10 switches  Switch Type: Linear Rail Bottom-out Designer: Silliworks Manufacturer: HMX Stem material: POM  Top Housing: Modified PA66 (With texture for MORE scratchiness) Bottom Housing: Modified PA66 Operating Force: 52±2g Bottom-out Force: 60±2g Pre-travel: 2.0mm Total Travel: 3.9±0.2mm Spring: 18mm KOS single-stage extended Factory Lubed: Yes!