Build up your Lionel model train layout empire with the addition of the Billups Crossing Signal. Featuring flashing red signal lights, illuminated skull & crossbones, and lettering, the signal will indicate which direction the train is coming from and blare a warning sound to warn motorists of oncoming danger. Based on the 1930s sign developed by Alonzo Billups and installed at a dangerous intersection in Mississippi, the only one in existence, this accessory is a must-have for every model train fan. Blinking Red LEDs Illuminated Skull & Crossbones Siren activates when train comes through Arrows indicate direction that train is coming from Includes Two 5" Insulated Track Sections for activation PRODUCT SPECIFICATIONS Gauge: O Gauge Power: Electric Dimensions: 20" x 9 1/2" x 6 1/2” (20 inch length consists of 10" track section and two 5" included Insulated) Most Recent Catalog: 2022 C2