YongnKids 4 Pack 3D Puzzle Maze Ball Toys| Brain Teaser Puzzles Maze Game for Adults & Kids Ages 8-12 13+ Gifts, Games for Adults and Family Best- Easy & Medium & Hard Challenges

4 Pack 3D Maze Ball : you can challenge 4 maze balls of different difficulty levels at the same time, and the smaller the steel balls are. Blue-green puzzles ball correspond to the most difficult and ...