Description: It may look like a transparent sphere amusement park for marbles, but this self-contained puzzle ball is a challenging maze for all ages Flip, twist, and spin, attempting to move a ball along the numbered paths, while you work with and against the forces of gravity Combined counterweight, mental, logical thinking ability, hand dexterity game Exercise practical ability, improve balance, enhance understanding of space Setting process: 138 steps Material: Plastic Size Chart: Diameter: Approx. 19.2cm/7.6inch Package Includes: 1 Piece 3D Maze Toy
