Designed for easy installations in the indoors and outdoors. Simply staple the fiber cable to wood while installing with virtually no loss (less than 0.1 dB loss). A thick layer of aramid fiber surrounds the glass constructed of Corning Clearcurve SMF-28 Ultra BIF or superior glass. The cable is also finished with a water resistant outdoor jacket (meets Telcordia GR-20-CORE requirements) protecting it from the elements.