Price is for 1 xGreen/Yellow/Red Railroad SignalsOO scale 1:76 or HO scale 1:87made of 3mm LEDs prewired resistorsready for 12V or 16V use you may cut off the resistor from the wire if you need to use it on 3V CharacteristicPrice is for 1 unitsSize for each : Approx. 73mm or 2.87' inch Heightfor OO scale 1:76 or HO scale 1:87the signal head is made from PlasticBrand newPRODUCT DESCRIPTION Your station platform or street scenes will be more lively with these items.Perfect for Model Train Set LandscapeControl them automatically by moving train ( click here )&nb...