Ideal for making prusiks, load release devices, compact pulley systems and anchor systems. Specifically designed for high performance in rope systems. Block-creel kernmantle construction. 100% virgin nylon fiber core and polyester sheath for resistance to acids and other chemicals. NFPA-certified as a personal escape rope. Available in four colors for easier identification of different kits. Available in North America only. NFPA 1983 "E". Weight: 3.3 lbs per 100 ft.