This PECO PL-42 Train Wheel Cleaning Brush is designed to clean the driving wheels of your trains. Simply connect the wires from the brush and scraper directly to your layout power supply and apply them to the driving wheels, one on each side. It is suitable for various scales and model types, including Scalextric, Hornby, Radio Control, and Sylvanian Families. This product is ideal for hobbyists and collectors of model trains and other detailed scale models.