Atlas N Scale Custom Line Standard No. 4 Turnouts feature nickel-silver rail with molded black ties. They are designed to be used with the Atlas Under-Table Switch Machine (150-65) or a ground throw. Unlike the other turnouts which have shortened ties to allow for switch machine attachment, Custom Line Standard No. 4 Turnouts have full-length ties. A double-ended throwbar allows you to place your under-table switch machine on either side of the switch. This standard turnout includes one piece of 19" curved track which can be used to make a reverse curve off the diverging route to make adding a parallel siding easy. This turnout is part of the line of Atlas N Scale track.