This is a popular and renowned variety of collectible walnut called "Nanjiang Stone," also known as "Angel's Wings" (Tenshi no Tsubasa) due to its shape. It's a masterpiece characterized by its unique form, resembling two angel wings. This is a top-quality, unpolished item. The dimensions are: side 40mm, belly 40mm, height 43mm, offering a well-balanced size. Please examine the images for detailed information and make your purchase based on your own judgment. *Due to the nature of the product, returns and exchanges are not accepted. Thank you for your understanding.*