Keeper, O-Track Double Stud Fitting, 1.57" O-Ring, 2,000 LB Weight Load Limit, 6,000 LB Break Strength,Convenient Tie Off Locations, Works With Beveled Or Standard O-Tracks, Works With A Variety Of Hooks: S, Snap & Double J, Easy Installation & Removal From Track, Increased Strength For Heavier Loads, Convenient Bin Displayer,