Thank you for viewing! (^-^) ~Terahertz Ore~ It is said to emit electromagnetic waves called "terahertz waves." Terahertz waves have the characteristics of both radio waves and light, and vibrate 1 trillion times per second. Terahertz Bead size: Approximately 6mm Post Catch: Surgical stainless steel We offer discounts for multiple purchases☆ This is handmade. I try to make them carefully, but they are not comparable to mass-produced products. I hope you will handle them gently. Since they are natural stones, there may be cracks or inclusions. I have several cats. Please refrain from purchasing if you are concerned. ・I am studying to polish natural minerals such as Larimar. My polishing skills are still developing, but thank you for your support(*´ー｀*) Please read my profile☆彡