Unsealing Technique

This technique is a standard ninja skill which allows a ninja to summon an assortment of items that have been stored using fūinjutsu. Scrolls are the most common choice for item storage. When needed, the owner will activate the seals releasing their item or weapon 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.

Weapons are the most commonly sealed objects, with puppet jutsu also using this by having these hidden inside various compartments as a means of increasing their own killing potential as well as hiding useful weapons from the opponent's sight.

Ninjutsu can also be stored in scrolls, to be released when the scroll is opened. In the manga, this is done with the Water Prison Technique can be stored in a scroll. Since this technique did not require the chakra or the will of the one holding it, and since the one who made it was dead, it was used effectively as a trap, immobilising anyone that tries to read the scroll's contents. In the anime this is seen when Shikamaru summoned a large amount of water, and Tenten summoned a fireball.

Trivia

 * Toroi uses this technique to store his magnetised shuriken which he uses in battle.