Iron eggs from Sakamoto Trading Co. (Oshu, Iwate Prefecture). They have been washed with water, drained, and stored. Please purchase only if you understand that they have been handled by a person. Thin iron egg for iron supplementation, convenient for cooking or boiling water. - Product Name: Iron Supplementation Iron Egg - How to Use: Can be used for cooking or boiling water - Features: Thin design for convenient storage - Material: Iron Thank you for viewing.