The card/card carousel element allows you to create one or multiple swipe-able cards with content, photos and buttons in your chat. This is the CARD element as it appears in the floating menu and the rollover description:
It will appear on the diagram in this style and is referred to as a card node:
It appears like this for the end user:
The card or carousel units can have any combination of text, image and up to 3 buttons. The carousel supports up to 6 cards.