This is a A-STR12D 12 Row Frame Kit PN: STR12DMain Description As Following : A-STR12D 12 Row Frame Kit P.N: STR12D Order STR101 shoe assemblies separately. Found in Section & Models : Headers/Platforms/Feeder House > Corn Head Parts, Drago HEAD, CORN: 12R30 (Rigid), Stalk Stryker > Stalk Stryker Frame Kits, Drago HEAD, CORN: 12R30 (Rigid) Associated Items : A-PS101, A-STR101 Also This is An Aftermarket Product And : Order STR101 shoe assemblies separately.