Spectrum Piece

Spectrum Pieces (スペクトラムピース, Supekutoramu Pīsu) are the pieces of the Spectrum Wheel. Each Spectrum Wheel has seven Spectrum Pieces, all of which are missing from the Wheels at the start of the Duel. Spectrum Pieces can be added and removed from the Wheels via card effects. When a Wheel has seven Spectrum Pieces, the player can perform a Spectrum Summon. Some card effects can also be specific with the color of the Spectrum Piece affected, either for addition/removal or as a requirement to even activate the effect.

Like the Spectrum Wheel, Spectrum Pieces are completely separate from the field and are not cards, so effects that target cards will not affect them.