This single axle trailer leaf spring hanger kit comes with everything you need to attach your slipper leaf springs to your trailer. In this kit you will receive two weld on front hangers and two weld on, C shaped, rear hangers designed to be used with a 1 3/4 inch wide slipper spring. The rear of the slipper spring is designed to slip into the weld on C hanger. This spring hanger kit also includes two leaf spring mounting bolts and nuts that are 9/16 inch diameter and 3 inches long.