H&S BIFOLD12HYD 12-Wheel Double Wheel Rake, Hydraulic Swing, Hydraulic Raise/Lower, Individual Rake Arms, Adjustable Spring Down Pressure, Turnbuckle Adjustable Windrow Width, Transport Locks, SMV Sign, Two Tractor SCVs Required, 5.30-12 Pivoting Gauge Wheels, 6.70-15 Tires, SN: 303028