UL classified to meet NFPA 1983/2006 edition rope standards for general use. Durable 16 carrier sheath construction has a 50/50 ratio of core to sheath for long wear. Solution dyed polyester sheath, nylon core. Elongation @ 300 lbf. = 1.8%, 600 lbf. = 3.3%, 1000 lbf. = 5.0%. Colors: red, fluorescent orange, fluorescent green, royal blue, yellow, white with red/blue tracer. Diameter: 5/8 inch/ 15.5mm. Tensile strength: 12814 lbf. Working load limit: 854 lbf. Weight per 100 feet: 7.1 lbs.