These are silver 925 earrings. They feature NASA obsidian, a type of power stone. ♪.:゜+。☆ ─♪.:゜+。☆─♪.:゜+。☆─♪.:゜+。☆ Effects of Obsidian: It is said to grant the power to see the essence of things and help solve problems. NASA obsidian is obsidian that was formed by melting during the launch of space shuttles, etc. ♪.:゜+。☆ ─♪.:゜+。☆─♪.:゜+。☆─♪.:゜+。☆ Instant purchase is OK (*'ω'*) This product is sold as a single item, so please feel free to contact me if you would like multiple types (*^-^*) I will create a combined listing for you. Delivered via Rakuraku Mercari delivery☆ If you have any questions, please feel free to comment☆ I also have many other silver 925 accessories for sale, so please take a look from my profile (*^-^*)☆ Size: Approx. 1.4cm x 0.7cm Stone part approx. 0.7cm x 0.5cm Men's Women's SILVER 925 Natural Stone #PowerStone #NaturalStone #NASAObsidian #FengShui #Amulet