Marble Run Building Blocks, Montessori Learning STEM Toys，Compatible with All Major Brands, Suitable for 3 4 5 6 7 8+ Boys Girls Gifts

He loves it

Definitely keeps kids busy and happy.

This is a fun toy, it is colorful and well-made. It is absolutely compatible with Duplo building blocks! I made the mistake of not reading the fine print— the balls are much smaller than they appear in the photo-shopped listing. They are 100% a choking hazard, so we ended up not giving the toy to the child it was initially intended for. We will keep it at Grandma and Grandpa’s house, as an activity we can all do together!

My grandson just loves playing with this and he likes changing the cars and building different designs

My son is obsessed with marble runs. He loves everything about it.

Product is cute. The set was missing pieces. It is not very sturdy; I will be surprised if my grandchild does not accidentally knock it apart. I had to rework it to make it fun without the missing parts. It needs the required parts, plus additional parts to strengthen the connections.

The media could not be loaded. Easy to follow directions, age appropriate, great color choices, easy for kids to put together.

I would recommend assembling on a board so you can pick it up and move it easily. Took me a minute to understand the assembly directions, they gray out the pieces that are already on the board and color the new pieces being added. Directions were hard to see where the exact placements should be, it would be nice to have an outline on the bottom grid for reference. Yes, I understand you can do different shapes, but if you are trying to follow the main one, it would be nice to know where to start at without squinting and counting bumps in the picture.