Fournier Heraclio No.1 comes in two main colour patterns on the back of the cards: red and blue.
The blue cards are usually marked with a big font in the middle of the card. And the ink used for the marking is white.
The red cards are marked with big letter or number in the middle, or with small fonts in the corners. The marks are also in different colours. You can find the red cards with black or white marks.
These cards are made of cardboard and their size is 62*95. Usually there are 40 cards in each deck.