Mini card
A mini card is a small board game card size: 1.75" × 2.5" (44.45 × 63.5 mm) trimmed. It's a good fit for compact decks, item or modifier cards, and games where table space is tight.
Why it matters
You reach for mini when a deck has many cards but each one only needs a name and one or two stats — full poker cards would waste table real estate. Mini sleeves exist but are less common at retail.
Example
A 100-card secondary deck of item cards in a dungeon crawler is a classic mini-card use. The reduced footprint keeps the table playable next to the main board.