🚗【Spark plug boots durable protection 】 Shinehome Spark plug header boots help prevent burn-through, hardening, and cracking of boots. The spark plug wire heat shield can protect your plug wire sets, especially on engines with excessive exhaust headers. | 🚗【 High Temperature Resistance Material】8pcs Spark plug boot protector made in double wall braided fiberglass sleeving (triple wall at the sewn end). The spark plug heat sleeve has good high-temperature resistance and anti-corrosion effect, it can withstand heat up to 2500 degrees intermittently. The 6 inch spark plug wire boot is long enough to protect spark plug wires near the header or exhaust manifold. | 🚗【Compatibility 】Each spark plug header boots length is 6.1"(15.5cm), ID 0.66"(1.66cm). It will work with 90 degrees, 45 degrees, and straight spark plug boot heat socks. The spark plug wire heat shield fits most hot rods and classic engines, (note: Only fit for vehicles that burn petrol); Compatible with Ford Chevy, GMC, Cadillac, Pontiac, Buick, Chrysler, Dodge, etc. | 🚗【Easy installation】Spark plug boot protector just slip the large end (with the sewn stitching) over the boot. Then carefully slip the ringed end over the spark plug wire boot that connects to the spark plug. | 🚗【Package Includes】8 Blue spark plug wire boot sleeves. You'll get a 12 month warranty. Please note only one Shinehome supplier in Amazon. Purchasing from elsewhere will not offer you a warranty. PLEASE NOTE: Only One SHINEHOME Seller Supplier in Amazon. Purchasing from elsewhere will not offer you warranty.