◯ RIDERACE INTERNAL CABLE ROUTING TOOL The difference between having this and not having it for frames with internal cable routing is immediately apparent, saving you time. This kit uses the power of strong magnets to manipulate cables inside the frame from the outside, achieving smooth internal wiring. Recommended for those who replace outer wires or switch to Di2. *Not suitable for steel frames due to the strong magnets. *Everything in the photos is included. I had this, but I don't think I'll be using it in the future, so I hope someone can use it. *I don't smoke. *I have a cat. There is a possibility of hair adhering to the product. *Free shipping NO 015