Home > Marble Runs > Marble Genius Marble Rails Extreme Set, 625 Piece Marble Run (55 Marbles, 80 Rail Pieces, 20 Base Pieces, and More), with Online App and Full-Color Instructions ; Visit the Marble Genius Store

Marble Genius Marble Rails Extreme Set

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16,187 reviews covering 50+ products for the category Marble Runs

Experiential insights by users

About Marble Genius Marble Rails Extreme Set
88% appreciated the easy assembly process, but 12% found it confusing
Compared to our other marble runs, this marble run is not easy to assemble.
I am dissatisfied with the assembling process of the Marble Genius rails set. It takes 5 separate pieces to make one rail piece when I can just use one normal marble run piece from another Marble Genius marble run set.
I had to rebuild and swap pieces as I started testing to make it work. But, a building savvy teen would eventually figure it out.
85% found the components to be durable and long-lasting, but 15% experienced breakage
I appreciate the thought that went into the designs of this Marble Genius set and it seems to be of good quality.
After the initial assembly, the structure was not stable.
91% liked the ability to customize the track, but 9% found it limited
My kids have decided to make their own designs instead of trying to figure out the instructions, which indicates that the customization options are not easy to use and understand.
I found that the marble run is too complicated for younger kids to build themselves and once it is built, they quickly lose interest because there is nothing they can really do with it. Additionally, it cannot be taken apart and changed around, nor can other marble runs be connected to it due to its completely different building material types.
85% appreciated the challenging yet fun difficulty level, while 15% found it too easy
I enjoy playing with it and I'm 15 years old.
I had to make some changes to the design and tubes after installing it incorrectly, indicating that the difficulty level of setting up the marble run is moderate.
I find this marble run difficult to configure with all the pieces and making two good runs with the splitter is hard.
My 12 year old and 14 year old needed my help building it.
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87% liked the high-quality marbles, but 13% experienced chipping issues
I prefer marbles with more interest than white. Other sets have amazing glow-in-the-dark flecks.
I have noticed that the jump does not work frequently when sending the marble down.
87% praised the creative track design, while 13% found it too repetitive
I started with the larger design on page 40, but had to make a few tweaks and change a few tubes that I had installed incorrectly. After straightening out a couple of leaning towers, it worked great.
I compared the track design of this marble run to the quercetti skyrail merged into the normal stacking type of marble runs.
After the initial assembly, the structure was not the most stable.

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