Great for keeping half-used bead strings secure, especially slippery crystal and glass that is so frequently strung on nylon. Also useful for trying on beads you've strung in a design you're still thinking about - they're secure enough to try on, but it's easy to take the Bead Stopper off and start over if you don't like the design. Prevents accidental spills that result in lost and broken beads and lots of frustration!
I do have backstock on this, so if you need more than 4, just request a custom item and let me know what you want, and I'll create a custom item for you. This will save you shipping costs, too!