Description Blue 1200° Spark Plug Wire Boots Heat Shield Protector Sleeve SBC BBC 350 454 US SPARK PLUG WIRE BOOT HEAT SHIELD INSULATOR SET OF 8 UNIVERSAL Blue FOR CHEVY FORD & MOPAR SET OF 8 Red SPARK PLUG WIRE BOOT SLEEVES MADE FROM DOUBLE WALL BRAIDED FIBERGLASS SLEEVING (TRIPLE WALL AT SEWN END) FITS ALL SPARK PLUG BOOTS AND WIRES UP TO 1200° DEGREES FAHRENHEIT (648.89° C) EACH BOOT IS 8" LONG BOOTS WILL WORK WITH 90 DEGREE, 45 DEGREE, AND STRAIGHT SPARK PLUG BOOTS EASY INSTALLATION: JUST SLIP ON (SEWN END OVER SPARK PLUG) FOR MAXIMUM PROTECTION .