The Shield of Ziegel is a weapon used by Vilgax.
The Shield of Ziegal is a golden gauntlet that Vilgax wore on his left hand, mounted with a yellow gem.
The gem is able to generate a powerful personal force field to protect its user.
The force field can become a knight-like shield on the arm or a dome/sphere to protect the user's whole body, and is able to defend them from attacks such as Ultimos' punches, Jetray's neuroshock blasts, or the guns of a large spaceship. It was also able to cut clean through that same spaceship.
The Shield of Ziegal can be shattered by Diamondhead's exploding crystal shards.
The Shield of Ziegel, and Vilgax's other weapons return in The Ultimate Enemy: Part 2, when Vilgax is returned to his normal form. How his armor and weapons returned is unknown.
The word Ziegel originates from German, meaning brick or tile.