Rack'em, stack'em and score with RACK-O! Take 10 cards at random and pop them in your rack. Now see if you can be the first player to get all of your cards in sequential order from lowest to highest. Special Prime cards will also add a little twist to the mix! Pick one and you may get to take another turn, rearrange cards in your opponent's rack, or even switch cards with another player. Rack up the highest score and you win RACK-O! Contains 60 Cards, 4 plastic card racks, and instructions.