The Plum Pi Playing Cards is the first deck in an 8-deck series of playing card decks called the Pi Slice Series, produced by playing card designer Jackson Robinson of Kings Wild Project. Each deck in the Pi Slice Series features a unique Pi flavor. The Plum Pi decks are specifically designed for a distinctive visual "pop" to make your card handling and cardistry more exciting.

Each deck in the Pi Slice Series is printed by the United States Playing Card Company, and also comes with a holographic collector's sticker to keep track of all the decks in the Pi Slice Series.