Be the first to get three of O's or X's in any row. A most challenging 'thinking' game for two players. It's easy to learn, but hard to master. Perfect for your coffee table or makes a great gift.
Contents: Illustrated rules, 54 challenge cards, 24 balls (8 green, 8 purple, 8 red) 12 test tubes.
Age: 6 years +. Players: 2 - 4 players.