WorkPro is a 11mm nylon and polyester static rope that is fully-certified and stronger than most other 7/16" ropes of similar construction while retaining a small but important amount of elongation (3.6% @ 300 lbs. 3% @ 540 lbs.). For the WorkPro, we developed an entirely new approach to rope constructionone that makes for balanced elongation in the core and sheath so they share the load evenly. Our newest static rope is the direct result of a rigorous in-use testing and evaluation process with rope access professionals working in variable and harsh conditions. The final design incorporates their feedback and benefits from our extensive experience working with nylon/ polyester mixed material ropes. Diameter 7/16" (11mm), MBS Rating: 8,092 lbs. (35.9kN), WLL: 809 lbs. (3.5kN), Certified to ANSI Z133, EN 1891 Type A and NFPA 2500 (1983). Available in Lengths: 150', 200', 300', 600' (46, 61, 92, 183m) and in Red or Neon Green colors. Made in the USA!