Nambu Ironware (called Nambu tekki in Japanese) is a form of metalwork produced in Morioka City and Oshu City in Iwate prefecture. It is a traditional craft that was first created in the middle of the Edo period (1603-1868). The product took the actual shape of the ammonite. Put this iron ammonite in the kettle before start boiling water to add iron to the water. 

• Size Approx. L2.25" x H2" x W0.75" 
• Made in Japan
• Material: Iron
• Product #: OIT06
• Code: NWS

Boil water with this. After boiling, take it out with a ladle. Leave and dry
*For the long-term preservation, wrap with kitchen paper, put it in a zipper bag, and store in a refrigerator.