A technical rescue and high angle multi-use rescue rope that is perfect for mainline rescue and belay line systems 100% nylon low stretch kernmantle , MBS of 9,241 lbs . 41/59 sheath/core ratio yields best durability and great handling Great for all types of technical rescue, confined space rescue, USAR, and industrial safety applications Certified to NFPA 1983, 2006 Life Safety Rope -General use