Reflect-A-Sleeve Heat Shielding Sleeves by Heatshield Products are perfect for protecting everything from wiring, harnesses, fuel lines, sensitive rubber hoses and vacuum lines, and more! Reflect-A-Sleeve Heat Shielding Sleeves simply slides on and does its job, reflecting up to 1000 degrees F of radiant heat and an impressive 500 degrees F of direct heat, which is more than enough to handle your heat problems! Reflect-A-Sleeve Heat Shielding Sleeves simply slide onto the component you wish to protect and are ready to be put to work! The part number for this Reflect-A-Sleeve Heat Shielding Sleeve is 270234 and it has a 2.75 inch diameter. It is 3 Feet long and can be easily cut to desired length(s).