Jagwire Pro Dropper Housing is designed for easier cable routing and to optimize the performance of dropper seatpost systems.3mm LEX-SL housing is more flexible than traditional shift housing allowing for easier installation on "stealth" internally-routed seatpostsLinear strand construction provides positive feedback at dropper remoteSlick-Lube continuously-lubricated liner reduces friction for smoother cable movementRequires Jagwire 3mm end caps for installationFor use with dropper seatposts only