JEGS Spark Plug Boot Guards shield your spark plug boots from header and exhaust manifold heat. Flexible 6'' long, two layer fiberglass stretches and conforms over boots up to 7/8'' diameter in various angles and shapes. Able to withstand temperatures of up to 1200°F. Available in sets of 8 or individually and in a variety of colors to match or contrast your spark plug wires and engine compartment. Made in USA.