Heatshield Products 204009 Black 5/8" ID x 6' Brake Line Heat Shield Sleeve Continuous operating temperature of 1100 degree Fahrenheit, 2000 degree Fahrenheit intermittent Capable of reducing up to 60 percentage of radiant heat Special weave that allows it to expand and contract over fittings Helps to prevent vapor lock, protects wires from melting, shields oil and brake lines