Thinkfun Gravity Maze Marble Run Brain Game

Gravity Maze is one of ThinkFun's most popular stem toys for boys and girls. It's a gravity powered maze game that comes with 60 challenges of increasing difficulty, from beginner to expert, and makes a great birthday or holiday present for kids who like puzzles, smart games and challenging activities. Gravity Maze is made with high quality components, and comes with a very clear and easy to understand instruction manual - you'll be able to play within minutes of opening the box.