Cobra Pulley (3/8"-1/2")

The Robertson Cobra Pulley (Cobra Trolley) features a two piece frame designed with multiple back up axles. This pulley is built to last. In fact, the Cobra has been used for nearly three decades. Description Sheaves are made of Rockwell Case Hardened Steel.   Recommended for zip line tours and for use in outdoor environments. Robertson's Cobra Pulley is built to last. Exceeds ANSI, OSHA, and NFPA Class G Standards and has been independently tested to 13,305 lbs.   Designed to move a person down a 3/8" - 1/2" cable safely at speeds up to 65mph! We recommend this pulley for zip tours with 2000' or more of zip lines.  Proudly made in the USA! This pulley comes with or without out handles. Please check the appropriate option box.