Thank you for viewing. This item was collected along the coast of the Seto Inland Sea. I believe it can be widely used depending on your ideas, such as for DIY, aquariums, interior decoration, andオブジェ (objets d'art). (Personal opinion) It has been soaked in baking soda water followed by fresh water to remove tannins and then sun-dried, but it has not been boiled. Please use it at your own risk and discretion, and additional maintenance is recommended. This is a natural, one-of-a-kind, unprocessed item. The images are the entirety of the item. When shipping, I will use newspaper as cushioning material and take care in packaging. However, as it is a natural item, I cannot be held responsible for any damage or chipping during shipping, so please understand. Only the annual rings remain, creating an interesting shape. As a result, the sides are fragile. This item has been stored and managed by an amateur. Please refrain from purchasing if you are sensitive to such things or if you are seeking perfection. Thank you for your understanding.