StopTech stainless steel brake lines improve pedal feel andreduce the amount of time between applied pedal pressure and actualdeceleration by preventing expansion, which stock rubber flex linesallow. This provides a quicker pedal response, and allows thedriver to maintain consistent brake pressure and precision brakemodulation.StopTech brake lines consist of a Teflon inner line that iscovered with a layer of stainless steel woven braid. The Teflontube is very resistant to expansion under pressure and will notdegrade from exposure to brake fluid. The stainless steel braidprovides support for the Teflon and the weave is extremely durableagainst incidental impact and abrasion. StopTech brake linesfeature a Clear Abrasion Resistant Cover for maximum protectionagainst chaffingAll StopTech Stainless Steel Brake Lines are DOT(United States Department of Transportation) compliant and 100%tested to a pressure of 4500 psi.