This non-flammable sleeve has a special weave that allows it to expand and contract over fittings. In addition it has that old school sleeve look with modern heat shield technology. Hot Rod Sleeve is withstands 11F continuous. Hot Rod Sleeve is thermal sleeving capable of withstanding 11F continuous. This non-flammable sleeve has a special weave that allows it to expand and contract over fittings. In addition it has that old school sleeve look with modern heat shield technology. Ideal for shielding fuel lines - helping to stop vapor lock protect sensitive wire looms from close proximity heat shield brake lines & hoses and stop clutch cables from melting. This enables you to fit things into those tight places and we all know custom builds have lots of tight places. Available in 1 and 1 rolls!