These are earrings made with 10mm firefly glass. Color: Mint Blue These cute earrings feature firefly glass hanging from chains, swaying gently. ※ This firefly glass is glow-in-the-dark, so it will glow in the dark for a while when exposed to strong light. ※ About Firefly Glass: A very popular souvenir item in Okinawa, firefly glass, with its deep blue color reminiscent of the Okinawan sea, is a glass bead with a hole, made using a molding 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 molten glass, 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 its deep sea-like colors captured the hearts of tourists. ・The attachment part is a pierced earring hook (gold color, brass). ※ You can also have silver-colored fittings (chain also silver, brass) 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 ・Pierced 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 change the fittings to silver, the chain will also be made in 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. ・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 them individually. ・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.