Simple earrings featuring only 10mm terahertz ore and earring hooks. Recommended for those who want simple, minimalist earrings, with nothing extra. The mirror cut reflects light and sparkles beautifully. 【What is Terahertz?】 Terahertz waves, which vibrate approximately one trillion times per second, have characteristics between radio waves and light. It is a wavelength that easily affects the movement of terahertz wave molecules, and it can provide amazing experiences and surprising effects on the human body, plants, and even materials. Recent research has proven the effects of terahertz. Terahertz waves can penetrate various materials such as paper, wood, and plastic, and are expected to be applied in the medical field. In addition, terahertz waves overlap with far-infrared rays and are said to have a self-heating effect. Specific effects on the human body include improved sleep disorders, stiffness, and coldness. Furthermore, it is said to activate the skin and have a beautifying effect. ・The attachment part is an earring hook (gold color, brass). ※ You can also get silver-colored (brass) metal fittings for no additional charge. If you wish, please let us know in the comments section and we will change it to silver and ship it. ※ Attachment parts can be changed for a fee. ・Titanium hook +10 yen ・Earring post +40 yen (can be changed to silver) ・Resin hook +15 yen ・Resin post +145 yen (can be changed to silver) ・Non-hole earrings +205 yen (can be changed to silver) ・Earrings +85 yen (can be changed to silver) ※ Multiple purchases are also possible. If you wish to change the metal fittings or purchase multiple items, please let us know in the comments section. We will create a dedicated page for you to purchase from. ・These are handmade, so they are not perfect. Please purchase only if you understand. ・The price and sale are for a set of 2, so we cannot sell a single earring. ・If you purchase other items I am selling together, we can discount the shipping cost for the duplicated amount, but we do not offer discounts on single items. ・I do not smoke and do not have any pets.