Product Description:100% Brand new, never been usedColor: TitaniumLength: 6" (15.5cm)ID: 1" (22mm)Set of 8 heat shieldRated for 1800°F continuous use, 2500°F intermittentFits most spark plug boots even 90°Reflects and dissipates heatDouble wall constructionAlways wear safety glasses, dust mask, gloves and long sleeves are recommended when handling this productHigh Quality PartsProfessional installation is highly recommend.(No Instruction Included)Spark Plug Sleeve provide the ultimate protection for spark plug boots and wires from extreme temperatures generated by vehicle exhaust headers and manifolds .It prevents burning and cracking that could lead to engine misfire and damage.The Boots are woven with two layers of high temperature fi.