ATLAS CONTROLLER This Selector is an Electrical Control Device Designed for Layouts of Any Scale by Atlas Model Railroad. FEATURES This control provides the simplest way to wire and control tricky reverse loops, wyes, and turntables. It has reversing switches for two mainline cabs plus a switch, selectable by either cab, for directional control on reversing loops, and so on. Cab Switches (Red--for Cab A and Cab B). Cab Selector Switch (Green). Direction Switch (Gray). Couples with #215 Selector (ATLU0215)--not provided in package. Instructions provided on package. INCLUDES One Controller