These cards can be used for a variety of purposes. They could be used to play Luck, for a sort, or anything else your imagination comes up with! The cards include 24 metric capacity cards (liters and milliliters), 24 metric length cards (centimeters and meters), and 24 metric mass cards (grams and kilograms).
Luck Rules: Each player should have their own shuffled deck of 24 cards face down. Both players flip their top card. Whoever has the larger amount wins both cards. If the amounts are equivalent, both are discarded to a separate pile. The player with the most cards at the end wins!