This single-track railroad grade crossing has half gates and is fully assembled. This grade crossing can be connected directly to C Track. The grade crossing has 2 solenoid activated gates with 2 red warning lights, which come on when the gates come down. This grade crossing is ready to be connected to the layout and features easy installation. Contact track set: 3 straight tracks each 94.2 mm / 3-3/4". Dimensions for each base half 137 x 95 mm / 5-3/8" x 3-3/4".