One of a kind. I am also listing this item on other sites, so please comment before purchasing to prevent duplicate purchases (＞人＜;) [About the Natural Stone] There are fine scratches and cracks. [About Materials] All items are made of stainless steel, but some parts are not labeled "surgical." Please be aware of this if you have allergies. Total length: Approximately 21 cm Adjuster: Approximately 6 cm Please feel free to contact me anytime for maintenance. ⚫︎siso'sshop Business Hours Monday to Friday, 10:00 AM to 3:00 PM * Purchases made after 3:00 PM on Friday will be shipped on Monday. Thank you for your understanding. Inquiries will also be answered during the above hours. ⚫︎Shipping and Postage Shipping is free. ⚫︎About Custom Orders Custom orders are currently suspended. We are also unable to accept inquiries about different colors or past designs. ⚫︎Free Gift We will include a free accessory with purchases of 2,000 yen or more. Please feel free to comment if you have any questions ^_^ #handmadeearrings