| 摘要 |
A plurality of fiberoptic strands is provided. Each fiberoptic strand has a free end. A plurality of groups is provided. Each group is formed of a plurality fiberoptic strands. A plurality of beads is provided. Each bead has a generally cylindrical configuration. Each bead has an exterior diameter, an interior diameter and an axial length. The beads have exterior surfaces. The exterior surfaces are of different colors. In this manner intended functions are designated.
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