2x single-mode glass fibers G.657B.3 JF(ZN)H 2E9/125 0.38dB@1330nm / 0.28dB@1550nm Diameter: 1.85mm, color white, Order number: HW-OFGK1-F1 (100m spool) Order number: HW-OFGK1-F5 (500m spool)