Magnum Polished Stainless Spark Plug Wire Set For Harley Sportster Features Premium quality, custom tailored ignition wire set Patented Sterling Chromite chrome -like braid Matches your chrome in brilliancy and wipes clean with detergent High voltage/high temperature 8mm silicone wire with 150 ohms of resistance High performance Monel (wire wound) suppression core Posi-lock spring clip terminals and highest quality silicone plug boots