Bundles of thick-walled microducts WPP-MG in a thin, tight sheath with a flat cross-section, designed for direct burial in the ground. The flat design enables vertical installation, reducing installation costs in roadside areas. The configuration of the quantity and diameters of microducts can be tailored to individual needs. The thin sheath, which can be removed, ensures easy separation of individual microducts. For future route localization, there is the option to prefabricate the bundle along with a detective wire. The standard external color is orange.