Wooden Puzzle Machine 3D Mechanical Puzzle DIY Handmade Assembly Intelligence Toy for Adults High-Difficulty Ball Track

Sale price $30.99 Regular price $49.99

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(Mechanical track): Unique mechanical track design.
(Enhances focus): Helps improve concentration.
(Crack the code of left-brain thinking): Unlocks the secrets of left-brain thinking.
(No screws required): No need for any screw fasteners.
(Assembly by fitting): Easy assembly by fitting the parts together.
(Multiple gears linkage): Features a multi-gear linkage system.
(Super hardcore electric mechanical): Powered by an extremely powerful electric motor.