3 otters 3D Puzzle Maze Cube, 72 Obstacles Puzzle Cube Interactive Maze Game with Education Toy for Kids Adults.Although the package says 4+ but I can easily say its challenging for even older kids and even adults.The puzzle has 72 obstacles.The design is cube instead of sphere.It is great fun for kids, My kid loves to take this along in the car rides and it keeps him busy during long drives.Came very nicely packaged and will be a great gift idea for any kid for birthdays, Christmas etc.