Optimized for blowing in micro ducts, the cable contains 288 color coded optical fibers, each with a 250um outer diameter. 24 groups of 12 optical fibers are contained in loose tubes filled with waterblocking gel. The loose tubes are SZ stranded, in two layers (9 in the first one and another 15  on top of the inner one), around a dielectric central strength member to enable mid-sheath entry. The cable is protected with a black HDPE outer jacket.