Magnetic tool that aids internal cable routing by guiding cables through the frame. Kit includes four individual steel adapters, a lead wire and flexible extension. Compatible with cables, housings / hoses and wires. Connect one end of the adapter to lead wire, the other end to a cable, Shimano Di2 Wire, or a housing. Build-in awl helps restore cut housing ends for better attachment with adapter, and easier cable insertion. The hose to hose adapter connects between an old hose and a new one. Features Magnetic tool that assists internal routing by guiding adapters through the frame. Built-in awl helps restore cut housing ends for easier attachment with adapter and cable insertion. Contents include 4 x individual adapters, a lead wire and a flexible magnetic extension. Compatible with cables, housings/hoses and wires. Fabric covered tip protects frame from scratches. 4 & 5mm housings. 5mm hydraulic hoses. Shimano® Di2 wires. 1.2 & 1.5mm cables. Compatible with aluminium, carbon fiber and titanium bicycle frames. Please trim off damaged / frayed cable ends or uneven housing ends to allow secure attachment with the adapter.Once the adapter is removed from a hydraulic hose, please cut 10mm off the end to ensure engagement with the brass insert.