MindWare Gearjits Coaster - 3D Wooden Puzzle

Challenge yourself and build an intricate, working marble run fashioned from beautiful, laser-cut wood pieces. This sculptural model is part architectural genius, part engineering marvel, featuring the design of a historic waterwheel and the fun of a hand-powered marble run! The manual crank moves the marbles through the course by setting an elaborate system of steel shafts, cogs, gears and wheels in motion smoothly and seamlessly. Gearjits combines all the benefits of traditional building sets with principles found in leading STEM toys. With easy-to-follow instructions, masterful design and an awe-inspiring finished form well beyond the norm for construction toys, you’re on track for a highly rewarding marble run experience. This intricate puzzles provides many hours of construction fun. Average building enthusiasts can complete the puzzle in about 4 hours. • Challenge Yourself And Build An Intricate Working Marble Run Fashioned From Beautiful Laser-Cut Wood Pieces
• Build A Beautiful Working 12.5" x 9.25" Wooden Marble Run Coaster With No Glue And No Tools!
• Develops Fine Motor Skills Creativity Perseverance And Dexterity
• Includes 236 Pieces And Detailed Assembly Instructions