This top quality static rope is for rapelling and rescue. This rope exceeds OSHA,ANSI and NFPA standards. The rope consists of a high tensile strenth nylon core, braided polysheath for resistance to heat,chemicals and abrasion. This the same rope issued to G.I. and civilian rescue and tactical teams. Rope has a 7/16" diameter and is rated at 7200lbs.test.