4Core MM Ultra Light, 100m on drum *** MM= Multimode 50/125 OM3 Fiber Core (Blue Rings on Connector) Ultra Light cable is a strong, flexible cable with a diameter of only 4.8 mm., very useful in controlled environments like studios and film sets. Ultra Light cable is bringing you smaller drum sizes and less weight. Specsfour cores of protected fibermultimode 50/125 OM3outer cable diameter 4.8 mm.color coded (four blue rings for 4Core multimode)cable length 100 meters in totalrobust male cable connector on both sideswound on Schill GT310 drumproduct code: c6100