Material: Plastic Color: Blue, Gray, Green & Yellow Age Grade: 8+ Quantity: 74 Pieces Set Includes: 1 - Game Grid 9 - Building Towers 1 - Target Tower 3 - Marbles 60 - Challenge Cards (Beginner To Expert) With Solutions 1 - Set Of Instructions The falling marble logic game that is sure to put your visual perception and reasoning skills to the test. Gravity Maze is the perfect way to challenge yourself whether you're a beginner or an expert! The towers can be arranged in a wide variety of visually stimulating structures but, for each challenge, you'll have to think carefully to build a path that will carry your marble to the Target Tower. Position the towers so that the marble falls from start to finish and you win!