3D Wooden Marble Run Puzzle - DIY Mechanical Model Kit Brain Teaser & Gift

Build your own marble run from precision wooden pieces, then watch the marbles roll. This glue-free mechanical 3D puzzle is a rewarding STEM project that teaches engineering and cause-and-effect - and looks great on display.

• 3D wooden marble run model kit
• Glue-free mechanical build
• STEM engineering & fun
• Great display piece & gift
• Ships fast from our US warehouse