The product is a set of 2 Lionel O Gauge 5165/5166 Remote O72 LED Switches Controllers. These controllers are designed for use with 3-Rail-2-Conductor rail systems and are specifically for switch track control. They are in black color, made of plastic, and are scaled at 1:48. The controllers are analog and operate on AC power, tested for functionality. Ideal for model railroading enthusiasts looking to enhance their O scale train layout with remote-controlled switch operation.