KS ETENi/E30iS 27.2 Air Cartridge, 100mm Travel

Cartridges fully replace the functional mechanism of KS dropper posts. Pick the model and length of drop for the post you need to service. These are also called "Oil Pressure Sticks" and "Air Pressure Sticks" In KS Service Documentation.
Fully replace the functional mechanism of KS dropper posts
May not work with OEM dropper posts