A special technique used by the 3rd, Kazekage. The third kazekage was a host of the One-Tailed Shukaku. So when he used sand techniques, because of his matalic genetic abilities, the sand became iron. When Sasori kidnapped the third, he killed him, and turned him into a puppet with his techmique. Sasori uses his 3rd, kazekage puppet, he uses the iron sand and puts poison in it for special attacks. Sasori was killed by Sakura Haruno, & his grandmother Chiyo.
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