Click here for a list of Czech glass buttons currently on sale ↓ #CzechGlassBijouButtons Uranium glass list ↓ #UraniumGlassCollection This is a set of two cabochons without loops. Since there are no loops, they are easy to use for earrings and brooches☆ These glass buttons are handmade one by one by craftsmen using traditional methods in Jablonec nad Nisou, Czech Republic, a town that prospered in the 19th century for glass and artificial gemstone manufacturing and is still known as a long-established production center for glass and jewelry. They were introduced on TV in Japan and are becoming popular. Even if you go to the Czech Republic, you apparently can't find glass buttons unless you go to the town of Jablonec nad Nisou. The number of workshops that have been around since ancient times is decreasing, and it is a traditional craft protected by a limited number of workshops. These glass buttons use a trace amount of uranium to produce an exquisite green color. Uranium glass, which is luminescent, glows when exposed to a black light in the dark. This uranium glass was widely produced in the United States and Europe before the war, but since uranium was needed for other purposes after the war began, uranium glass was only made before then. Currently, the production of uranium glass is very limited worldwide, and it is a valuable glass. Since only a very small amount of uranium is used, it is said that there is no health damage associated with owning or using it. Country of manufacture: Czech Republic Size: Approximately 1.8cm in diameter It does not have the perfection of a machine-made product. There are multiple pieces available. We will send you the stock. ※If you combine with other buttons, we will discount 120 yen for each additional button from the second one. Please apply without a discount using Mercari's "bundle function". We will calculate and change the price after the discount. Czech glass Bohemian glass Czech glass Bohemian glass Glass products Handmade Crafts Glass parts Handmade parts Accessory parts Rare Decorative buttons High-quality buttons Obidome (sash clip) Cute buttons Jadeite Uranium glass Uranium glass Vaseline glass Vaseline glass Vaseline glass Uranyl glass Hormesis Hormesis therapy Hormesis effect Overseas Foreign