Jittering improves your concentration! The sound and vibration are pleasant, and it's a skill toy that can be used for brain training and stress relief. If your hands turn black with brass dust or if dust gets on the ring and causes it to spin poorly, wash your hands and the ring regularly.
![Unused Corn ring figure ring collection Corn ring [E4865-001]▶110](https://images.buynet.work/thumb.php?i=373424680&s=240)
