The 2" square tubing on this PCA-1264 Vertical Pull Winch Support fits perfectly on the PCA-1263 Tree/Pole Mount (required, sold separately). Use them together when you want to attach the Portable Winch to a tree or post when vertical pulling is required. This allows for your winch to be installed at a more comfortable height at the convenience of the operator. The system is designed to allow the rope to go through the pulley, and then straight up. It makes it easier to work from one point for longer periods of time.
When pulling, it is required to use a rope with a minimum diameter of 1/4" and maximum diameter of 5/8". For lifting, use a rope with minimum diameter and maximum diameter of 1/2".