Microducts are suiable for the installation of fiber units and (or) micro cables containing between 1 and 288 fibers. Dependent on the individual microduct diameter, tube bundles are available in several types such as DB (direct bury), DI (direct install) and making them ideal for diverse applications such as long distance bone network, WAN, in-building, campus and FTTH. They can also be customized to meet other specific applications.