Iron Gourd

The Iron Gourd  ' orginally Iron Armor''' is one of the Eight Immortal Weapons used by the Zenhōi kage to slay the Kuzuryū. It was passed on to one of her children who used it to create a large river. The unique ability is that it anything put into the gourd and when seal will be multiply and continue to multiply until it is opened again. It is currenty possesed by Hiroshi Nakano he then to store his chakra into the gourd and will drain some if of it when it is need without opening it. If it's opened by someone other then the user the contents will react different depening on that is sealed within it.