This tandem axle trailer leaf spring hanger kit comes with everything you need to attach your double eye leaf springs to your trailer. In this kit you will receive 2 front and 2 rear weld on hangers. You will also receive 2 weld on center hangers and equalizer bars, 8 spring shackles and 14 leaf spring mounting bolts that are 9/16 inch diameter and 3 inches long. This hanger kit is designed to work with leaf springs that measure 1 3/4 inches wide. This is a great kit to buy if you are building your own trailer and need spring hangers.