A stop bead is simply a bead that you thread on at the beginning of your work, which is designed to stop the rest of the beads from slipping down the thread.
The stop bead is only used temporarily. It is usually removed when the piece is finished where a toggle or clasp is added instead. Sometimes you may continue to thread beads from the opposite end.
How do I add a stop bead?
Simply pick up a bead and pull it to the end of your thread, leaving a tail of about 8 inches (20cm). Pass the thread back through the bead and pull taut.
Now your ready to bead.