This technique is a standard ninjutsu which allows a shinobi to summon an assortment of items that have been stored in special seals, using fūinjutsu. Scrolls are the most commonly chosen for item storage. When needed, the owner activates the seals releasing their stored items or weapons of choice. Scrolls can also be used as ammunition for other weapons or have other seals inside of them, which expands the number of potential tricks a shinobi can use.[1]
Weapons are the most commonly sealed objects. Tenten, a weapons specialist from Konohagakure for example, uses this technique to store her many weapons, making them easier to carry around with her. Toroi of Kumogakure also used this technique to store his shuriken which he used in battle. Puppet masters also use this technique with their puppets either through hidden scrolls in various compartments or a simple seal as a means of increasing their own killing potential as well as hiding useful weapons from the opponent's sight. This can be seen with Sasori's Thousand Hands Manipulation Force. In the anime, rather than sealing her weapons in scrolls like Tenten and Toroi, Ajisai stores them in paper tags.
A wide variety of other things can also be stored in scrolls, to be released when the scroll is opened or under a specific condition. In the manga, this is done with the Water Prison Technique by Kisame Hoshigaki. Along with a medium for his sharks, it was used effectively as a trap, immobilising the persons that tried to read the scroll.[2] In the anime, this is seen when Shikamaru summoned a large amount of water, and with Tenten's Exploding Dragon Strike technique.
