Blood Pouch

These are membrane sacks created by scientist Kōza Yakusho. Kazō has taken some to use as a deceptive tactic during battle. He fills the pouches with animal blood and keeps them on his person to create the appearance of severe wounds.

He only really used the pouches during his one S-ranked mission. First to fake his own decapitation, then again to fake Oda's death. Neither Oda nor Kasumi were aware of these tools when the mission took place, causing confusion and distress among them. The pouches have since been banned from use by Grass shinobi due to the problems it could clearly cause among allies.