Stud Ring & Track Rail Tie-Down Anchor Kit Package includes (4) 36"L x 1.25"W x 1/2"H anchor track rail pieces and (4) stud ring anchors Maximum 2,000 lb. working load per track rail Works great attached to pickup truck side rails, beds, or trailer surfaces, for securing S-hook straps, cargo nets, bungee cords and more Installation requires drilling *Does not include mounting hardware