Cyclists and bike mechanics, this BESNIN internal cable routing kit is an absolute lifesaver for bike maintenance! The set includes everything you need for routing shift cables, brake lines, and oil hoses through modern bike frames with internal routing. The main magnet with guide wires makes fishing cables through tight frame spaces so much easier - no more frustrating hours trying to thread cables blindly. Plus you get a bonus 2-in-1 hose cutter that handles hydraulic hose cutting and works as a needle driver for various brake systems including Shimano, MAGURA, TEKTRO, and SRAM. The whole kit is compact and lightweight at just 95g, making it perfect for your saddle bag or tool kit on the go. The steel construction feels durable and professional-grade. Whether you're building up a new bike, replacing cables, or doing routine maintenance, this tool saves you so much time and frustration. The Di2 E-tube adapter is included too for electronic shifting systems. If you work on modern bikes with internal routing, this is one of those tools you'll wonder how you ever managed without. Your bike maintenance just got way easier and more professional with this complete cable routing solution!