The Bulk Lifeline Rope is built with 100% polyester and available in spooled lengths to suit the specific needs of your job. Versatile bulk rope 100% premium polyester for added strength Materials: 100% polyester Weight: 122 lbs. (55 kg) Length: 1,200' (366 m) Diameter: 0.6" (16 mm) Tensile Strength: 7,500 lbs. (3447 kg) ANSI Standards: Z359.1, A10.32 OSHA Standards: 1926.502