Hydraulic Clutch Line Black polyvinyl chloride (PVC) outer jacket for maximum flexibility & durability, Steel inner casing that is tightly coiled for low compression ratios, A pre-lubricated nylon inner sleeve s smooth operation and long life, All wire ends are bird caged prior to terminal casting for superior pull-out resistance, Ethylene propylene diene terpolymer (EPDM) molded components are manufactured from high strength polyoxymethylene (POM) material