Wide Applications Compatible with mountain bikes and road bikes for shifts cables, hydraulic lines, and brake lines. Designed to fit internal frame routing where a frame internal cable housing is needed. Internal Housing Damper Features an internal damper that reduces vibrations and noise from the inner tube inside the frame. Helps minimize friction between the inner tube and the frame, providing better protection for the frame interior. Material and Durability Made with a spongelike, wear resistant material that is soft, elastic, and flexible for longlasting use. Designed to maintain performance under regular riding conditions while cushioning the cable housing. Easy to Trim and Install Package includes Frame Internal Cable Housing. The housing can be trimmed to suitable lengths to meet the specific needs of your bike cable routing. What this product solves Reduces noise and vibration transmitted through the frame from cables and lines. Protects internal frame surfaces by minimizing direct contact and friction with the inner tube. Provides a flexible, durable solution for internal cable routing. Use scenarios Road bike upgrade: worn internal cable housing to smooth gear shifts and quiet braking with internal routing. Mountain bike maintenance: install to dampen vibrations from shifting or hydraulic lines and protect the frame's internal surfaces. Custom builds or repairs: trim to required length for clean internal routing on frames with challenging cable paths.