Black PVC outer jacket for maximum flexibility and durability, Steel inner casing is tightly coiled for low compression ratios, A pre-lubricated nylon inner sleeve guarantees smooth operation and long life, All wire ends are bird-caged prior to terminal casting for superior pull-out resistance, Brake cables feature a pre-stretched inner wire that is flared out before the terminal end is cast for superior pull out resistance; includes adjuster hardware spring, nut, and barrel where applicable, EPDM molded rubber components for high UV resistance and long life, Injected-molded components are manufactured from high-strength POM material