If you do a lot of knotting between your pearls, you may want to consider using this tool. It also can help if you are having trouble getting evenly spaced and shaped knots in your jewelry. The tool comes with instructions (within the card shown). You don't have to save it only for pearls, though. It can be used with any valuable beads where you want prevent beads scattering if the string breaks. Knotting between beads also prevents beads from rubbing against each other, preserving their appearance. Tool packaged by Beadsmith.