A wire core lanyard has a steel cable running through the center of the rope

For square booms

and other heavy equipment commonly used in arborist operations

400lbs or 24kN

Phytophthora

PETZL ROLL CLIP TRIACT-LOCK CARABINER twin ascender A wire core lanyard hasThe Petzl Roll Clip Tri Act Lock features a pulley sheave attached to a locking carabiner making an awesome light rigging redirect, climbing redirect, or speedline carabiner. The carabiner can also help streamline a R. A. D. S. climbing system by reducing the distance created by the carabiner AND the micro pulley. The twist lock gate makes for a secure connection that wont twist open like a non locking carabiner. This makes for a great addition to any