What sizes do folded pearl cards come in?

Six flat sizes: 4.25" x 11" and 5.5" x 8.5" (fold to 4.25" x 5.5"), 6" x 9" (4.5" x 6"), 7" x 10" (5" x 7"), 6" x 12" (6" x 6") and 8.5" x 11" (5.5" x 8.5").