This is a "3D Maze Ball" where you roll a ball to reach the goal. I bought it as an educational toy for my child, but they no longer play with it, so I'm selling it. It's a game where you skillfully roll a steel ball along the colorful rails inside the sphere without dropping it. No batteries are required, so you can play immediately. Unlike video games, it's perfect for developing hand-eye coordination, concentration, and spatial reasoning skills. Not only for children, but adults can also enjoy it as a brain training exercise or a way to pass the time. 【Condition】 ・There are no problems with the operation (ball rolling). ・It is a used item that my child used. ・The outer transparent plastic part has some minor scratches from storage and use (please check the photos). There are no cracks or breaks. 【Product Specifications】 ・Type: 3D Maze / 3D Puzzle ・Size: Diameter approx. 19cm ・Batteries: Not required We are looking forward to your purchase if you understand that this is a used item. Instant purchase is OK! #EducationalToy #Puzzle #3DMaze #MazeBall #BrainTraining #Toy #Child #Present #SpatialReasoning #Concentration