The sealing technique, used by Obito Uchiha to seal the Ten-Tails to his body. After the necessary hand seals, he starts to absorb the Ten-Tails quickly. When absorption is completed, his skin shatterred apart and changed to unique form. This in effect allows him to become the beast's jinchūriki. What seems to be the seal for this technique appears on Obito's back as ten magatama; a large magatama, with a spiral pattern within it, on top, and nine smaller magatama, in three rows of three magatama each, beneath it.
The design on Obito's back after he sealed the beast resembles the one imprinted on the back of the Sage of the Six Paths' robe.