Hollow design, airtight, non-slip and built for reliable cable work. Suitable for a variety of wiring setups. Key benefits - Durable steel construction: rust-resistant, high strength, long service life. - Secure and stable: hollow design and non-slip surface keep cables in place during routing. - Versatile compatibility: works on frames without wire feed devices and supports multiple wiring configurations. - Cable housing ready: designed for cable housing guides and straightforward installation of braking and shifting cables. What it is and does - Material: steel for strength and durability. - Function: fixes brake line and shifting cable on frames lacking built-in wire guides. - Design focus: hollow, airtight, non-slip to ensure clean, stable cable routing. - Compatibility: suitable for a variety of wiring modes and setups. Use scenarios - Frame without wire guides: install to fix the brake line and the speed change line during assembly or upgrade. - Re-routing or upgrading cables: use with different wiring configurations to guide cables neatly through the housing guides. - Maintenance on frames without wire guides: secure both brake wire and shifting cable for reliable, lasting operation. Notes - Designed to stay durable and dependable under long-term use while maintaining secure cable positioning across diverse wiring layouts.