Five Elements Seal

This jutsu produces a powerful seal that is used to block or disturb the flow of chakra in a target. Once the seal is completed, the target will become unconscious and unable to fight for a short time. Orochimaru performed this jutsu to tamper with the seal on the Nine-Tailed Demon Fox. The original seal allowed the Nine-Tails' chakra to seep out into Naruto Uzumaki, but the additional seal disturbs this, preventing Naruto from using the Nine-Tails' chakra or even controlling his own chakra properly. This is because an odd-numbered seal creates an imbalance when placed on top of an even-numbered seal. When Orochimaru later notices that the seal has been removed, he remarks that there are very few ninja capable of doing so.

Trivia

 * The "Five Elements" referred to in the name of this technique are the Chinese Five Elements, the :
 * and ,
 * and ,
 * and ,
 * and ,
 * and ,

instead of the five chakra elements used in most other techniques, the :
 * and.
 * and.
 * and.
 * and.
 * and.

This suggests the elements are merely symbolic.