Constructed of 100% high-tenacity polyester fiber, Static-Pro Lifeline is an extremely low stretch, kernmantle rescue lifeline that provides advantages when the need for super low elongation offsets the need for the rope to provide energy absorption in the system. With less than 1% stretch at 300 lbs., Static-Pro is an excellent choice for high lines, long rappels, and many mechanical advantage haul systems. Its low electrical conductivity has advantages when working on towers or charged electrical equipment. The polyester fiber ropes have better resistance to acids than nylon, making Static-Pro an advantage in acidic environments. The Static-Pro Lifelines come in solid colors with a single stripe to prevent confusion with CMC Rescue Lifeline and other solid color kernmantle ropes. WARNING: Technical Rescue and Safety is potentially hazardous. Any person using equipment sold by Rescue Remedies in any manner is personally responsible for learning proper techniques involved, and assumes all risks and accepts full and complete responsibility for any and all damages, including death, which may result from the use of any equipment sold by Rescue Remedies . The tensile strengths listed are for a new product. Tensile strength may decrease depending upon use or storage conditions.