Jagwire's Pro Internal Routing Tool simplifies routing through a frame, using powerful magnets to safely and easily guide inner cables, housing, hydraulic hose, and e-shift wires. A retractable, fLEXible magnet can be inserted into the receiving end of an internal cable run to find the magnetic adapter and easily pull it through. Adapters for inner cables, hydraulic hose, and Di2 e-Tube wires are included. The adapters nest neatly inside tool body when not in use.