Starting Line Products High Performance Brake Line - 34in. 27-60 Manufactured from the highest quality materials for no-compromise performance Low-quality rubber, braided cord or metal lines will not perform or last like these lines Teflon core, braided stainless steel cover with a PVC outer sheath Lines are lightweight and flexible with a burst strength of 12000 pounds Less hand effort required and up to 70 percent less expansion for better braking power to the caliper