This is the Atlas® Switch Control Box Suitable for Ages 8 & Older. FEATURES: An electrical device which controls the setting of remote switch machines by a momentary burst of power. Merely slide the button to the position desired and depress briefly. Controls Atlas (or other twin coil) switch machines with SPDT momentary action. Button position indicates turnout setting. Can be coupled together in any number without wiring. Suitable for HO and O scale layouts. Switch identification labels included. Instructions on package. INCLUDES: (1) Control Box (2) Double-Ended Spades Screws REQUIRES: Remote Switch Machine Screwdriver kr2/17/06 ir/jxs