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🧲 Build, innovate, and mesmerize—your marble maze masterpiece awaits!
The NATIONAL GEOGRAPHIC Magnetic Marble Run is a 75-piece STEM building set featuring magnetic tracks, trick pieces, and marbles designed for ages 10 and up. This Amazon-exclusive kit encourages hands-on learning in physics and engineering with easy snap-fit connectors and a comprehensive Learning Guide. Its patented magnetic design allows construction on any vertical magnetic surface, making it a versatile and educational puzzle loved by kids and adults alike.





| ASIN | B0BHXPB9XG |
| Age Range Description | 10 years and up |
| Age range (description) | 10 years and up |
| Best Sellers Rank | 25,601 in Toys & Games ( See Top 100 in Toys & Games ) 40 in Marble Runs |
| Brand | Blue Marble |
| Brand Name | Blue Marble |
| Customer Reviews | 4.4 out of 5 stars 2,800 Reviews |
| Educational Objective | STEM |
| Educational objective | STEM |
| Global Trade Identification Number | 00810070621391 |
| Included Components | magnetic connectors, track bits, trick pieces, balls, storage bag, instructions and learning guide |
| Item Dimensions | 30.5 x 6 x 27.9 centimetres |
| Item Type Name | 75-Piece Magnetic Marble Run STEM Building Set |
| Item Weight | 726 g |
| Item dimensions L x W x H | 30.5 x 6 x 27.9 centimetres |
| Manufacturer | Blue Marble |
| Manufacturer Part Number | NGMRMAG75 |
| Manufacturer Warranty Description | We're proud to make the highest quality products which are backed by exceptional service. |
| Material | Multiple |
| Material Type | Multiple |
| Maximum Age Recommendation | 1188.00 |
| Minimum Age Recommendation | 120.00 |
| Model Number | NGMRMAG75 |
| Set Name | 75-Piece Magnetic Marble Drive STEM Building Kit |
| Size | 6.03 cm x 30.48 cm x 27.94 cm |
| Sub Brand | National Geographic |
| Theme | Buildings |
| UPC | 810070621391 |
| Unit Count | 1.0 count |
M**.
So much fun.
This kept my 12 and 9 year old quite occupied with a good dose of frustration while they figured it out. There’s a plan in the box to follow too and it didn’t scratch my fridge freezer either. Great purchase!
M**T
Kids love it
Good quality. The kids love it, only thing, there is nothing to actually catch the balls, so we have marbles bouncing on our tiled floor, a small inconvenience . Great fun
K**R
Sticks well to fridge freezer.
Got this for my grandson at Christmas, he and his dad loved this, making runs down the fridge freezer doors.
S**K
Nice present
Good fun, but be careful as they slide around when left on the fridge. Unfortunately this lead to a couple of parts getting caught on the door and they broke. Could have done with a sturdier material maybe, or more care to be taken.
R**N
Good and fun. Very creative toy
Amazing . Kids was playing for hours. However you must have a big fridge or create a steel wall
J**Y
Fun and educational
Educational and doesn't take up space on the floor. Comes with a travel bag so you can easily take it to someone else's house. Pieces are sturdy and the magnets stick well. Instructions were easy to follow and encourage trial and error to get the pieces exactly in the right place or to make your own design.
I**S
Magnets are not strong enough
It is a toy, and I'm an engineer, probably I was expecting too much of it based on other reviews. The magnets are the weakness here, they are simply not strong enough. I had to supplement them with fridge magnets to enable reliable operation. The static elements that receive no shock loading are fine. However, when a marble drops onto an element, even a very short distance onto any track, or rotating, or other element, the element will move a small amount each time. without extra support. Fine, if this is to be used as a toy, but with this shortcoming, it is not possible to obtain repeatability over more than a few circuits due to the elements moving around. The fact that this comes with a lift, means that the elements need to remain where placed in order to provide cyclic operation. The marbles are also a weakness, none are spherical, just watch them as they roll! they are very poorly made and would be best, substituted for better ones. Overall, a great toy for a child, but not a gift for an engineer with expectations of repeatability.
M**A
Great item!
Bought as a gift for two boys (8y,11y) and they played with it for hours … week later - still spending 1-2h a day changing the layouts/ improving the strategy. Highly recommended! We had kids age range 5y-14y visiting over Christmas and they all loved it
M**K
Great toy, a lot of fun!
I purchased this for my nephews, and it has been a massive hit! From the moment they opened the box, they were completely captivated by the endless possibilities for building and creating. The magnets are strong and sturdy, making it easy for little hands to assemble and disassemble the pieces without frustration. I love how this set encourages creativity and problem-solving while also teaching basic STEM concepts in such a fun and engaging way. My nephews have built everything from simple shapes to complex structures, and their excitement never fades! As a bonus, the included guidebook provides great inspiration for new designs, but the kids love to freestyle their own creations too. It’s a perfect blend of fun and education, and I feel great knowing it’s helping them develop important skills like spatial awareness and teamwork. The quality is fantastic—durable, safe, and well-made. It’s also compact enough to store easily, and the storage bag is a thoughtful addition for keeping everything organized. I would highly recommend this to any parent, teacher, or caregiver looking for a creative, hands-on activity for kids. Whether for playtime, homeschooling, or just some screen-free entertainment, this set is worth every penny!
S**A
Circuit de billes original
Cadeau de noël pour mon fils. Il adore !
C**N
El mejor juego que han tenido
Este juego es impresionante. Mis hijos de 14 y 11 no paran de inventar nuevos circuitos, pueden estar horas...súper creativo, les hace pensar, dedicar atención plena y que ellos dirijan el proyecto que han diseñado, una joya que encandila a todos. Nosotros cogimos una pizarra magnética aparte y así pueden hacer los circuitos durante horas sin ocupar la nevera.
C**N
Stimolante
Super divertente e stimolante! Regalo perfetto per bambini che vogliono costruire e inventare percorsi sempre diversi.
L**M
Fun that’s Magnetic!
A super tool to help Littles learn about the push and pull forces of magnets! An education and fun toy that also helps foster imagination and creativity!
Trustpilot
1 day ago
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