Simple earrings featuring only 6mm firefly glass beads and earring hooks. Recommended for those who want simple, minimalist earrings, without any unnecessary elements. Color: Cobalt Blue This firefly glass is not glow-in-the-dark. ※About Firefly Glass A very popular souvenir item in Okinawa. The deep blue color evokes the Okinawan sea. Firefly glass, popular as a souvenir, is a glass bead with a hole, made using a shaping technique called burner work, similar to tonbo-dama (glass beads). Artisans melt colored glass one by one onto an iron core, and then layer silver foil onto the glass in a molten state, like syrup, using a special technique to express beautiful colors. There are no clear records of when firefly glass, a type of tonbo-dama that originated outside of Okinawa, became popular as a souvenir in Okinawa. However, it gained attention in the late 1980s as a replacement for rare coral products, and it is said that the color reminiscent of the deep sea captured the hearts of tourists. ・The attachment part is an earring hook (gold color, brass). ※You can also have silver-colored (brass) fittings at no additional charge. If you wish, please let us know in the comment section, and we will change it to silver and ship it. ※Attachment parts can be changed for a fee. ・Titanium hook +10 yen ・Piercing 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) If you wish to change the fittings, please let us know in the comment section. We will create a dedicated page for you to purchase from. ・Sold as a set of 2, we do not sell single earrings. ・The metal fittings used are not specifically allergy-proof. ・These are handmade, so they are not perfect. Please purchase only if you understand. ・To prevent deterioration as much as possible, please remove them when bathing or swimming in the sea. ・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 I do not have any pets.