This is a natural stone that my great-grandfather cherished. I only know that it was used for things like seals, so I don't know the details. Size: Length: Approximately 15cm Width: Approximately 5cm Depth: Approximately 2.5cm Weight: Approximately 526g Please note that there may be slight variations due to amateur measurements. The item will be packaged with bubble wrap and cardboard for shipping. Additional Information: New cardboard will be used, but if a suitable box is unavailable, recycled cardboard will be modified for packaging. Please understand this. Please understand that this is a used item. As I do not know the details of the stone's color or material, please make your purchase based on the photos. To prevent switching, no claims and no returns are accepted. Type...Rough Stone Seal Material