Mountain Goat Software offers Planning Poker® cards for your use in
estimating. Each deck contains enough cards for four estimators to each
hold cards with the following values: ?, 0, ½, 1, 2, 3, 5, 8, 13, 20,
40, 100, and ∞. The cards are printed on the finest quality card stock
available. Each deck comes in a box to help keep the cards from being
damaged.