Two 19-inch profile rails made of aluminum extrusion profiles, specifically designed for use in doubleprorack systems. The profiles feature a front-side T-slot mounting system, enabling flexible and secure installation of devices. Suitable as a second mounting plane, they provide additional mounting convenience in existing rack systems. The surface is plain, ensuring clean and robust processing. The package includes the two 19-inch profiles and the necessary mounting hardware, allowing for quick installation without additional procurement. The rails are supplied in sets, simplifying planning and execution of rack installations.