Turn the power up a notch on your wooden railway with the Bigjigs Rail Mighty Loco Battery Operated Engine. Watch it chug along your wooden train set either as a solo engine or with carriages attached to its magnetic coupling. The primary colors are simple and add a touch of color to a wooden train set. This is a battery-operated train that requires 1 x AAA batteries (not included). Magnetic couplings ensure compatibility with all other engines and carriages in the Bigjigs Rail range. Most other major wooden railway brands are compatible with Bigjigs Rail.