Hello there serveit, To provide easy implementation with maximum of functional capacity, the material carousels in our demos toggle between three items. The media applied within is ensured to be served with appropriate responsiveness, meaning it gets correctly displayed on any kind of screen, no matter their medium i.e. picture, video, panel. In case of pictures & video it means they scale down and up, covering destined surfaces evenly. One may decide to use cards as medium passed around by the carouse - even sets of thereof, that's fine. It's worth to note, though, that the responsiveness means different behavior for different UI elements and in cards it limits the number of them being displayed side-by-side horizontally and moves consecutive ones line down when scaling down the view port's width parameter. That way users are not made to unexpectedly scroll sideways. Knowing of these two above-mentioned facts - the nature of the carousel and the responsiveness principle in cards should help one to understand, why setting three sets of cards, three cards each, as carousel items on narrow devices causes only the first card of the set to be displayed. If I understand correctly, your expected behavior of a carousel's is to have it act like it had three sets of three cards on bigger screens, while on smaller ones to act as it had nine cards being passed around as its items. With Best Regards, Kuba

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