The N Scale Manual Switch Machine by Atlas is a pre-built, black plastic device designed for use with N scale model railroads. Manufactured in 1987, this manual switch machine operates on a two-rail system and features a switch left or right functionality. Measuring 5 inches in length and 5/8 inches in width, it weighs 0.5 pounds and is equipped with an operating feature to enhance the realism of model train layouts. Perfect for enthusiasts looking to add a realistic touch to their N scale collection.