ACCEL '300+' Spark Plug Wire Set 175100 Ideal for Cross Bones Fat Boys Heritage Softails Heritage Softail Classics Heritage Springers Night Trains Softail Convertibles Softail Customs Softail Deluxes Softail Deuces Softail Springers Softail Standards and Springer Softails Specially designed Ferro Spiro core delivers maximum spark Extra thick silicone jackets and insulation eliminate electrical leakage Special aramid core and fiberglass braiding resists vibration and wire stretch Backed by a 90 day Limited Warranty