- Built to last: made from high-strength materials for excellent durability. This internal cable management tool resists wear and is not easy to damage, giving long-lasting performance and reducing the risk of damage to the tool itself. - Smooth, safe cable handling: designed for use with brake and shift cables, as well as pipe and oil pipe threaded connection accessories. The tool protects cable housings and fittings while routing, helping prevent frays and snags. - Efficient routing through complex frames: the unique joint design guides brake and shift cable hoses smoothly through tight or irregular internal channels. Use it to avoid tangled or pinched cables and to keep internal layouts neat and functional. - Fast, user-friendly installation: setup takes only a few minutes. The simple design requires no special tools or professional experience, so bike owners and maintenance staff can install or reroute cables quickly and confidently. - Color options to match your bike: available in black, red, gold, and silver so you can choose the finish that best complements your frame. Key attributes - Function: internal cable management and routing for brake and shift cables - Compatibility: designed for a wide range of brake and shift cable housings and for pipe and oil pipe threaded connection accessories - Material: high-strength materials for durability and resistance to damage - Performance: smooth cable passage through complex frame geometries; reduces tangling and pinching - Installation time: a few minutes; no professional tools required - Colors: black, red, gold, silver Practical use scenarios 1) Road bike upgrade: When installing internally routed brake and shift lines on a frame with tight internal channels, use this tool to guide hoses cleanly from head tube to down tube without repeated rework or risk of housing damage. 2) Mountain bike maintenance: During routine brake or shift cable replacement in the field or at home, the tool speeds routing through irregular frame sections, saving time and reducing frustration. 3) Workshop assembly: For bike mechanics assembling frames with integrated routing or attaching threaded oil/pipe fittings, this tool streamlines the process and helps maintain consistent, damage-free cable runs. What you get - A durable, easy-to-use internal cable management tool that simplifies routing, protects cables and fittings, and is compatible with common brake/shift systems and threaded pipe/oil accessories. Available in four colors to match your bike.