Ultimate Marble City
DIY STEM Construction Toy
- Age8+
- Build time240 mins
Couldn't load pickup availability
- Ships across the US
- Missing a piece? Free part replacement
- Return policy
Imagine an exciting game where marbles roll through a vibrant city to earn points! With this kit, your child will build their own Marble City Game and launch marbles in three thrilling Game Zones. In the Spiral Zone, they will control the Barricades for points. In the Maze Zone, they will tilt and balance marbles to score higher points. In the Hopper Zone, pressing the button will earn big points—Hop-Hop-Hurray! But watch out for the Dead Zone!
Why parents love it
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Screen free play
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Builds love for science
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Enhances creativity
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Increases attention span
Three steps to a proud kid
Build
Pop out pre-cut wooden parts and follow picture-based instructions. No tools, no mess.
Play
Your creation actually works — score on the pinball table, launch the rocket, grab with the robotic hand.
Learn
Discover the science inside: levers, hydraulics, elasticity and more — explained in kid-friendly language.
Proudly award-winning
Questions parents ask
Can't find your answer? Contact us or email support@smartivity.com.
What age is this kit for?
This kit is designed for ages 8+. Younger builders can join in with a grown-up's help.
How long does it take to build?
About 240 mins, depending on the builder. Many kids split it across a couple of sessions.
What if a piece is missing or breaks?
It happens! Request a free replacement on our Free Parts Replacement page and we'll send it over.
Where do you ship, and what does it cost?
We ship within the United States. Standard shipping is a flat $2.99 per order, and delivery takes 3 to 6 business days.
Can I return it?
No, we don't accept returns. If a part is missing or broken, we replace it free: request it on our Free Parts Replacement page. Details are in our return policy.
