

🎯 Race, Build, Repeat — The Ultimate STEM Marble Challenge!
The Marble Genius 125-Piece Marble Run Racing Set is a premium STEM toy designed for ages 4 and up, featuring 125 durable pieces including 8 action-packed elements. It offers endless creative building options, easy assembly, and a free companion app with guided projects. Compatible with all Marble Genius sets, it transforms marble racing into an interactive, family-friendly experience that sharpens problem-solving and engineering skills.



| ASIN | B08CW35M5V |
| Best Sellers Rank | #110,147 in Toys & Games ( See Top 100 in Toys & Games ) #130 in Marble Runs |
| Customer Reviews | 4.6 4.6 out of 5 stars (585) |
| Item Weight | 3.63 pounds |
| Item model number | RACING_125 |
| Manufacturer | Marble Genius |
| Manufacturer recommended age | 4 years and up |
| Package Dimensions | 16.54 x 12.28 x 3.78 inches |
R**L
Very fun toy
We recently got the Marble Genius tracks set for our family member who's latest hyper fixation is marbles. The tracks set was a blast for her but trying to make marbles race like the videos she has been watching wasn't really what that set was good for. We got this set after that one and it's perfect. Lots of fun parts (action parts) and ability to race marbles. This set was much easier and faster for her to put together. She had no problem building the most complicated set with the tracks version but it's nice how it's quicker for her to get this set up fast and play. It definitely has more interactive play features unlike the other witch more of a watch and enjoy the tracks. Combined these are a whole new world of possibilities for her to make crazy builds with action parts, tracks etc. they work together perfectly without any issues. The race build is slightly wobbly but was good learning build for her to understand how it needs to be with more gravity then the other set. She had already started building her own race tracks with both sets and is so happy with it. Definitely a great set to add more options to existing sets were you can now race marbles or if this is your first set it is very hands on and fun. The instructions book has 1 build but the app has many more so recommend the app if someone is younger and needs more beginner builds to start with. Overall it's a great set and a perfect addition to the marble run toys we have.
J**A
Stop Shopping - Get this one!!! Fun for the whole Fam!
This is the best marble run. My 5 year old asked for a giant racing one like she sees on youtube. This one checks ALL the boxes. The whole family enjoys it - including my 10 year old, even our cats. It’s easy to put together. It’s sturdy. It was a win! It seems to be easily able to add-on other sets. Hoping to check out more from this brand!
P**L
I prefer Mindware sets for their quality, but the racing pieces in this set make all the difference!
TO THE POINT: If you have a Marble Run Enthusiast in the house, you will absolutely want the unique pieces in this set. Also, it is fully compatible with Mindware's sets and close in quality. Specifically, you want these four unique pieces to turn a straightforward marble run into a real race where any marble has a chance to win: • Racing Starter (the starting gate where all your racers can be launched simultaneously) • Racing Round 'n' Round (normal looking vortex but made with holes for placement of the deflector pieces) • Racing Gauntlet (not a fully unique piece, but with the included deflectors it's a must for any race) • Racing Base (the finish line. When stickered, it shows who got 1st, 2nd, etc. Not absolutely necessary, but I wouldn't race without it now that we have it) It also comes with a cardboard piece with holes to place the marbles, setting up your tournaments. This is not required to make your own racing tournaments, but it certainly helps. The cardboard is very thin and will warp if it isn't already warped out of the box. Still, we tend to use it. In most marble runs, the first marble down is the first to finish. It's physics. You can dress it up all you want but you are not racing marbles if you don't have some of these specific pieces where the unexpected can occur. The 'gauntlet' piece I mention about (I call it the pachinko), is actually available in other marble run sets, but using the deflectors that come with this set ramp up the variability and uncertainty in what might happen when the marbles come rolling through. So which version of this set should you buy? Well, the booster pack gives you one of each of the best pieces... However, I really think you'll want at least 2 of the vortexes. Remember, these pieces, thanks to the deflectors, are where anything could happen. A marble joining the vortex late in the race may be the first to hit a deflector, sending it straight into first. So I would recommend the 125 piece set, or the 200 piece set (which comes with a third vortex and some other parts). We already had a couple of the larger Mindware sets, and I did purchase the 200 piece racing set here, so we just picked out a bunch of duplicate pieces and gave them to a family member to give them more options for their own marble run set. I still maintain that Mindware's Marble Run sets are the best quality with nice thick plastic and a tighter fit with the tube pieces... But if racing is your thing, the specific pieces in Marble Genius's Racing Set are an absolute must.
T**H
It’s fun- my kid loves it!
Keep the building guide! I’ve had to rebuild this thing more times than I can count. My kid loves it! It is fun to watch. It does seem to fall over easy- my robo vacuum hits it with a sweeper and it comes crashing down. That’s annoying.
A**R
Great
My kids love these! They’re nice and sturdy. Really great quality!
B**Y
Awesome!
My 6 year old son is obsessed with marble runs. Marble genius makes the best!
M**A
Quality marbles
I put it together and its great to design your own track.
C**Y
Only buy Marble Genius
Marble Genius is the best marble run brand! The step by step picture directions are easy enough for kids to follow while building the track! The best track is the racing track! Get the Marble Genius glow in the dark and light up marbles it makes it more spectacular! If you buy a cheaper brand you will be frustrated because they don’t come with instructions and are not sturdy! We have a few different tracks and the racing one is the most fun!
A**N
My son absolutely loved this and played for hours and hours it was really easy to set up he has autism and enjoyed repeatedly racing the marbles would highly recommend
A**R
Viciante!
E**.
De los mejores productos, muy buena calidad y muy divertido. Todo llegó en orden y sin alteraciones. Muchas gracias, esto no es fake. :)
S**N
I had a hard time to find a marble race with various paths. This one is perfect, my son loves it.
G**.
Mit dieser Kugelbahn können unglaublich viele Variationen gesteckt werden. Bleibt immer interessant, da immer neue Möglichkeiten gesteckt werden können.
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