Use your train as a switch to activate your Plug-Expand-Play accessory When your train passes by, it completes the circuit and routes power to your accessory until the train has passed. Pack Includes: One 10" Insulated track section Two 5" isolated sections Plug-Expand-Play Power Lock-on made specifically for accessories fitted with a Plug-Expand-Play power cable PRODUCT SPECIFICATIONS Gauge: O Gauge Brand: Lionel Power: Electric Most Recent Catalog: 2016 Lionel Volume 2 Catalog