Harrel is a model car race track that can be used with all known slot cars to a scale of 1:32 and 1:24. Commercially available power supply units can be connected for control. The module is a complex assembly based on a high-quality wood composite. The surface is asphalt grey lacquer with quartz sand for the right grip. The connection segments and plastic components consist of high-performance polyamide and are screwed together as a module. A thick copper line connects the connections and supplies the visible conductors with electricity. The different modules can be easily plug­ged together to form an individual track of up to eight tracks next to each other.