Thinkfun Gravity Maze Falling Marble Logic STEM Game For All - Complete The Thinkfun Gravity Maze Falling Marble Logic Game is a challenging STEM game suitable for children aged 8 to 15 years. With a compact size of 9.38 x 2.83 x 10.47 inches and a weight of 1.1 pounds, this award-winning board game features a game grid, 9 building towers, a target tower, 3 marbles, and 60 challenge cards ranging from beginner to expert levels. Children can enjoy this engaging and educational game that promotes critical thinking and problem-solving skills, making it a perfect choice for both boys and girls who love strategy games.