Forged steel construction;E-coated and powder coated for maximum corrosion resistance;Greaseable pulley shaft with Zerk fitting;Unique functional JAW movement allowing assembly to shackles or fixed eyelet recovery objects;Patented self locking/engaging feature to help prevent disengaging during operation;One pulley for steel wire and synthetic rope (not recommended for use on synthetic rope AFTER steel wire);Debris trap in pulley to ensure the maximum life to the pulley and bearing surfaces;Work load limit max 36,000 lb;California Residents: WARNING