FallTech 7479 Hinged Self-Tracking 5/8-Inch Rope Grab with 2-Inch Connecting Eye Self-tracking design provides ease of vertical movement on a rope lifeline Hinged body allows simple placement at any point along the vertical lifeline Locks onto the rope lifeline at the onset of a fall event Rugged alloy-steel construction Hinged construction allows attachment or detachment at any point along the line Threaded lock with positive secondary is secure and easy to operate Unique gravity-operated safety cam prevents improper attachment Meets the requirements of OSHA 1926 and ANSI Z359