Pierces (ピアス, Piasu) are unnamed Dimension ÄRM earrings used by the Chess Pieces and the Cross Guard that can transmit communications among members from miles away.
History
Gallery
Communication Earrings used by the Cross Guard in the manga.
.png "Dimension ÄRM - Pierce (Knight).png (1.19 MB)")
Chess pierce of the Knight Class.
.png "Dimension ÄRM - Pierce (Bishop).png (417 KB)")
Chess pierce of the Bishop Class.
.png "Dimension ÄRM - Pierce (Rook).png (340 KB)")
Chess pierce of the Rook Class.
.png "Dimension ÄRM - Pierce (Ghost).png (420 KB)")
Pierce in use, worn by the Ghost Chess.