Arachni Synthetic Rope is 5 times stronger than steel on an equal weight basis， yet， at the same time， is lightweight， flexible and comfortable. Ropes are rated up to 6，000 Lbs and made with a kevlar blend making it an ideal product to run against the drum without fear of degradation. Fibers of Arachni consist of long molecular chains produced from poly-paraphenylene terephthalamide. The chains are highly oriented with strong interchain bonding which result in a unique combination of properties. General Features of Arachni Rope:• High Tensile Strength at Low Weight• Low Elongation to Break High Modulus (Structural Rigidity)• Excellent Dimensional Stability• High Cut Resistance• Flame Resistant， Self-ExtinguishingThese 12-Strand ropes are extremely strong with minimal stretch and very good abrasion resistance. Ropes are urethane coated for extra abrasion resistance. Ropes are 50ft and come with a 3 foot rock protector sleeve Metal Thimble and heat shrink protection.Specifications:Key Material: Poly-paraphenylene terephthalamide (kevlar)Length: 50 feetDiameter: 1/4"Rated Strength: 6，000 lbsWarranty: 3 years