You can crimp, knot, or fuse the ends of this remarkable stringing product. Very flexible, stretches freely and returns back to its original state. In some places, it's called Jelly String. There are several brands. We carry Stretch Magic.
Elastic string comes in different sizes.
For most glass beads - .7mm size. For larger hole beads - 1mm size Tie a square knot. Some people put a drop of glue on the knot. If you are using glue, use a glue that dries like rubber, such as rubber cement or an epoxy like E6000. When the wearer slips the bracelet over their arm, the hard-bond will crack like a broken bottle, and easily saw through the elastic string with wear.