Arbo Space Huracan 12.7mm (1/2") RopeHURACAN 12. 7mm 24 Strand Double Braid Climbing Line The HURACAN rope sets the standard in professional arborist climbing lines, offering unmatched performance, durability, and versatility. As a top choice among the arborist community, the HURACAN 12. 7mm diameter is engineered for exceptional compatibility with mechanical devices like the Petzl Zigzag and Chicane setup or the Hitch Climber pulley system. Building on the popularity of our original 11.