Sumind 4 Pcs 3D Puzzle Maze Ball Magic Brain Teasers Games Memory Sequential Gravity Maze Cube Ball Sphere Educational Puzzle Toys for Adults Teens Hard Challenges(Blue, Green, Red, Orange)

3D Maze ball set: there is a set of 4 maze balls in 4 difficulty levels for option; Each cute maze ball is about 10 cm/ 4 inches in diameter, lightweight and compact for a comfortable grip and an easy carry, so you can enjoy this maze brain teaser game anytime, anywhere; Serving as a nice gift for friends and family Challenging game: as a new type of puzzle game, the brain maze puzzles look simple, but are more difficult to pass; They are a nice helper for your brain training and brain growth; The spherical shape does not require set-up or battery installation, just flip the ball to the finish line Function: These 3D maze ball toys need to observe the travel path and think about how to send the mini steel ball to the end; It is an educational toy that can cultivate your spatial cognition and logical thinking, improve your concentration and patience, relieve your stress and promote inspiration Wide compatibility: the blue and green maze puzzles correspond to difficult and most difficult game levels, so the steel balls inside are relatively small; While pink and yellow ones are simple level, so the steel balls are larger; Different difficulty levels can meet the needs of various players, from teens, adults to the elderly, and never be out of date Safe to use: the shell of the maze puzzle ball is made of non-toxic plastic without a smooth surface, while the tiny steel balls are confined in a transparent protective cover for safe play