Thank you for viewing! This is a power stone necklace! I don't know what kind of stone it is >_< [Specifications] Total length: Approximately 35cm Approximately 20x15x13mm (size is approximate) ・Please understand that this item is stored at home and will be shipped with simple packaging before purchasing ( ⁎ᵕᴗᵕ⁎ ) ・Although it is a new, unused item, it has been opened for inspection and photography, so it is listed as "Like new". ※I do not have expert knowledge regarding the product, so I may not be able to answer all questions about the product. Please understand. ◇21-33 0071