If you are a hobbyist or a professional, it is always a good idea to freshen up the look or style of your jewelry designs from time to time. One of the easiest ways to make this change is by changing the bead thread or bead cord that you are using to string the beads on.
Depending on what type of beads you use, pearls, natural stone, crystal, or glass, the beads have a standard hole size. For instance, pearls usually have a very fine hole due to their fragile nature. So the hole size will limit your choices as to what type of bead cord you can use.