Mechanical Eight Trigrams Formation Drum

A giant drum, specifically, a Taiko drum circa Tsunade's height in diameter, used to control Konohagakure's Mechanical Eight Trigrams Formation technique. The user bangs on the giant drum to activate the technique in order to trap the enemy in a maze of walls. Each subsequent beat will activate or deactivate more walls.

Tambor de la Formación Mecánica de Ocho Trigramas