The IR-1.3 speeds the installation of internally-routed cable, housing, electronic wiring and hydraulic hose into carbon fiber, titanium, and aluminum frames. The straightforward guide magnet system utilizes five long guide cables with unique fittings, which can be routed through the frame in a number of ways using the included guide magnet. Everything is neatly stored in a convenient compact case. A true time and frustration saver!Kit includes 5 plastic coated 188cm cables with attached magnets and unique fittings plus an external guide magnet to speed operationNewly updated to include a dedicated E-tube Di2 cable connector that easily pulls through a 6mm frame holeOpposite polarity magnets on cables seek and attach inside frame tubes, making it easy to route through frame entrances and exitsWorks with any size frame including tandemsA true time and frustration saver