Kids match picture pairs and find riddle solutions in this classic game based on the best-selling I SPY book series! The game combines beautiful photographs, familiar object collections and rhyming riddles to create brain-teasing puzzles players can’t resist. The game includes 24 durable cardboard memory cards (12 matching pairs), 6 cardboard riddle cards and instructions—all in a handy storage tin for on-the-go fun. Cards measure 2 1/4" x 3 1/4". For 1-4 players.