●All coils insulation is coated to resist abrasion, eliminate oxidation, and guarantee contact. ●The Coil will last for approximately 100 uses or more subject to use. Avoiding abrasion and overheating prevents premature wear to the coil. ●Reinforced heat stabilized thermoplastic housing provides for increased durability inside and out ●All coil resistant to elevated temperatures 400-800 Degree ●Great flexibility and versatility, Covered terminals for superior safety protection