About this item: Package Include: 8x Titanium Boot Heat Sleeve Protector Cover, Each Boot Is 6inch Length, Boots Will Work With 90 Degree, 45 Degree, And Straight Spark Plug Boots; Length:6"(15.5cm) ID:1"(25mm) Spark Plug Boot Cover is Made from fiberglass material, protect from Heat from 1000 Fahrenheit (550 Celsius); Note: only fit for vehicles which burning petrol Fits All Spark Plug Boots And Wires Up To 1200 Degrees Fahrenhett (648.89° C); Manufacture Part Number: SBC BBC 350 454 .
