Stahlhaut (鋼の皮膚, sutaruhātto; German for "Steel Skin") is a powerful defensive technique employed by Quincy that serves as a far more effective tool than Blut. By channeling a small portion of reishi through each pore of the Quincy's human body, each of these miniscule reishi particles generate a force-field that synchronizes with other fields to form a uniform network through the skin of the entire body structure. The result of such an action leads to the Quincy supplementing their skin structure with a nearly impenetrable defense from spiritual attacks. It is likened heavily to an Arrancar's hierro. It provides a defense without allowing a Quincy to leave themselves vulnerable to internal assault by attempting to use their imperfect Blut defense, as a strong enough Stahlhaut can defend a