The 5010-XXX Series of Vertical lifelines are made from a combination fiber rope with a firm lay, excellent wear and a high strength to weight ratio. Produced with high strength continuous filament polyester surface yarns wrapped over high tenacity Ultra Blue Fiber. 5/8" poly/polypro rope with a 6062 carabiner. Complies with the current ANSI Z359.1-2007 and all applicable OSHA regulations and requirements.