The 3M 2529 Fibrlok II Universal Optical Fiber Splice was designed for splicing any combination of 250 to 900 micron coated fibers. In addition, the universal splice provides a single cleave length for 250 and 900 micron coated fibers. The Fibrlok II can be used with either single mode or multimode fibers with a glass cladding diameter of 125 microns.