Goodridge Econoline ABS Brake Line Kit HD8299-C+8 Hose features clear PVC coating, PTFE inner liner and premium stainless steel braided armor PVC hose coating adds great looks, abrasion protection to expensive parts and resistance to damaging UV rays PTFE liner is an inert material, compatible with all hydraulic and brake fluids, has a heat range of -158 to 500 and shields brake systems from moisture, unlike other materials like nylon Stainless steel braid is superior in pressure rating, flame resistance and volumetric expansion to all other materials, including Kevlar, resulting in unmatched stopping power