3D Wooden Puzzle Marble Running Kit - Mechanical Model Building Kit for Adults, Puzzle Brain Teaser Assembly Model, DIY Wooden Puzzle Hobby Toy Gift for Adults and Teens

This creative 3D wooden puzzle is designed for adults and teens: it takes a little patience to assemble this 3D model following the detailed instructions. . This wooden model features plywood with pre-cut details that you can assemble with your own hands. No glue or extra tools are required.

- This Marble Run 3D Wooden Puzzle Marble Run Model Kit contains 335 small pre-cut wooden pieces. The entire assembly process of this marble parkour takes about 5 hours.

【No Glue Required】Mechanical 3D puzzle, laser cut plywood, non-toxic, eco-friendly, smooth wood board. All parts are pre-cut, no glue required. The interlocking mechanism is very clever.

[Detailed English description] Making this mechanical model toy requires not only carefulness, but also patience. Feel the pride of assembling the entire toy contraption with your own hands.

- CHALLENGING BUT FUN: The Marble Parkour Marble 3D Wooden Puzzle for Adults is a great design for home decor and a great challenge for model makers. Crafting requires patience and dexterity, which is a test of your hands and eyes.

- Educational Toys: This wooden puzzle can also be a brain teaser puzzle. It's a highly educational building experience that will leave you satisfied when you're done building and getting to work.