Product Description: 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 6" 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 SLEEVES CAN WITHSTAND HEAT UP TO 1200 DEGREES USING PATENTED INSULTHERM TECHNOLOGY SLEEVES ARE HALOGEN FREE & NON CONDUCTIVE SLEEVES RESIST GASOLINE & ALL ENGINE CHEMICALS INSULTHERM SPARK PLUG WIRE SLEEVES CAN REST DIRECTLY ON HOT HEADERS AND OTHER ENGINE COMPONENTS WITHOUT BURNING, MELTING OR BECOMING BRITTLE FITS MOST HOT RODS AND CLASSICS ENGINES INCLUDING GM (CHEVY, GMC, OLDS, CADILLAC, PONTIAC, BUICK, FORD, & MOPAR (CHRYSLER, DODGE, PLYMOUTH) Compatible FITS 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 ENGINES Package List SET OF 8 AC DELCO IRIDIUM SPARK PLUGS 41-110 12621258