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Gecko Run Marble Run Starter Set by Thames & Kosmos, Toy of The Year Winner - 63 Piece Vertical Marble Run, Flexible Tracks | Fast, No-Mess Setup, Residue-Free Nano-Adhesive Pads, Creative Play

  • Based on 400 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Mar 23
Order within 7 hours and 38 minutes
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Features

  • Innovative: Design your own vertical marble runs with this specially designed system of flexible tracks that does not require any support structures, allowing you to build higher with fewer pieces.
  • Intuitive & Mess-free: Tracks attach to smooth surfaces with the help of clever nano-adhesive pads that create a strong but temporary bond; the pads are not glue-based and can be quickly and easily repositioned without leaving behind damage or sticky residue.
  • Open-ended & Educational: Combine different configurations and environments for endless possibilities; develop engineering and problem-solving skills and see physics in action.
  • Tracks are made from renewable raw materials.
  • Whats Included: The Starter Set comes with over 60 pieces, including 12 tracks, 7 marbles, 40 nano-adhesive pads, levers, a funnel, and more.

Description

Gecko Run takes classic marble runs to the next level with new creative challenges and less restrictive building requirements. This innovative marble run uses a specially designed system of flexible tracks that does not require any support structures. Traditional marble runs require lots of pieces to create vertical height, but with Gecko Run, your doors, windows, cupboards, bookcases – virtually any smooth surface – become part of your track, allowing you to build higher with fewer pieces. Attach the tracks to surfaces with the help of clever nano pads, which work like nanoscopic suction cups, to create a strong, but temporary bond. Because the pads are not glue-based, they can be quickly and easily repositioned many times without any damaging adhesives or sticky residue. A quick wipe with a microfiber cloth will keep your pads ready for action! The versatile tracks are made from renewable, durable, and sustainably sourced raw materials. Thanks to their wide range of motion and flexibility, you can create hills and jumps, and even turn corners to generate a limitless number of tricks and stunts. No two tracks are ever the same! Each unique configuration promotes hands-on experimentation, supports problem- solving through trial-and-error, develops motor skills, and encourages creativity for kids and their grownups! The Gecko Run Starter Set includes everything you need to zip, zag, bounce, skip, and hurdle into an awesome engineering adventure. A 16-page illustrated manual guides you through setting up your first runs and teaches you how all the different elements work. Witness physics in action! Use independently or combine with any of the expansion packs.

Product Dimensions: 9.9 x 2.6 x 11.2 inches


Item Weight: 14.4 ounces


Item model number: 550201


Manufacturer recommended age: 8 years and up


Release date: February 1, 2024


Manufacturer: Thames & Kosmos


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Lots of fun and engaging
All the kids in the family loved this toy. I will say, they can be difficult to remove from the surface because they are meant to securely cling to the surface. They won't damage the surface but you have to use the helpful tool they include to help the suction release and smaller children will likely need your help to move them. That being said, setting them up and then playing with them are lots of fun and they kept the kiddos engaged for a long time! ... show more
Reviewed in the United States on March 15, 2026 by Amazon Customer

  • um great....but READ the AGE RECOMMENDATION... wish Amazon would put it in the item name
edit: the 8 year olds I worked with ADORED this and the 5 year olds.... some were able to figure it out and found it really interesting!!! Others kind of struggled with how it worked and gave up and lost interest relatively quickly. And found another play choice in our space. I didn't have a ton of time to walk them through it and I didn't have that many track/etc/materials for each child but. But plenty loved this! The good: I have merely tried sticking 2 connectors, a track, and a catcher to my glass sliding door to my patio and it worked great! I was thrilled. It was kinda fun as a 31 year old assistant teacher and leader of an after school care program! The bad/surprising: I was absolutely NOT read for how FAST this marble run can potentially go if you curve the bendable tracks. It can go really, really fast. Maybe that's a benefit to some. Not really here. I work with ages 5 to 8, but MOSTLY at the 5ish age range... some kids can be really sensitive to stimulus and overwhelmed so the QUITE FAST and NOISY, as well, nature of this marble run was something I was not expecting and am not particularly pleased with. Also, something about the nature of this toy is pretty hard, honestly. Predicting where the potentially fast marble is going to go next and using your imagination and guessing to figure out where the next track goes is hard. Even for a grown adult. I'm going to try to put this out for some 5 year olds and the brighter and more mature of them but I have a feeling it won't go so good. I see a return of this product in my future. A shame I'll probably end up having to return it because as soon as I saw this thing I thought "Wow!" Because I'm always looking for toys with suction cups for glass doors. I was a pre-k teacher for ages. Kids love that type of toy beyond words and it also makes what was previously a ONE USE and almost useless part of a room (just a glassdoor for only exiting) in to a play space which is useful. Ugh. Hope this works out. Maybe I"ll update it. I could see a 12 year old losing his mind over this. But yeah. Probably not for young ones. Oh, and because it's so fast you could maybe lose marbles and even do so quickly, unfortunately. Ugh. ... show more
Reviewed in the United States on February 10, 2025 by customer

  • Overall great but lacking
Nice design and entertaining interactivity but it could stick to surfaces better which is kind of important.
Reviewed in the United States on March 16, 2026 by Westley H.

  • Good Quality, But Stickers Ruin the Experience
The material of the product is actually pretty solid and feels like it’s made to last, which I appreciate. However, the biggest issue—and it’s a big one—is the stickers that come with it. According to the instructions, they’re supposed to stick to flat surfaces, but they just don’t. They peel off almost immediately, making it frustrating and nearly impossible to use or enjoy the product as intended. If the manufacturer could improve the quality of the stickers, this would easily be a 5-star item. Until then, it’s a decent concept let down by poor execution. ... show more
Reviewed in the United States on July 24, 2025 by Lorenzo Gonzales

  • Kids love it
Got it as a gift and for my child. Kids love playing with it. They get creative setting it up and building it. The stick quality is going strong
Reviewed in the United States on February 26, 2026 by Dakota57790

  • Not sticky
My kid was disappointed. The little sticky patches don't stick for long. And they really only stick to glass. Even then, they wore off quickly. And every time he tried to build a new 'run' they would fall off the glass. Didn't work at all on the bathtub /shower wall.
Reviewed in the United States on March 5, 2026 by Jody N.

  • 9 yr old & mom love it!
Only tried it on our window so far, but love it. Some review caution about the stick, but not a problem for us yet. I’m guessing it works better on some surfaces than others. We’ve repositioned again & again on window & no problems at all with the stick. When you open the box, it’s best to have an adult attach the nano-suction pads. After about 10 minute prep, you’re ready to go! We got this toy on sale and I’m thrilled with it. It was perfect to get my 9 yr old off electronics & into creative play on a boring snow day home from school. He refused to read instructions, but figured out most of the pieces/assembly on his own. We’ll have to explore the few levers/mystery pieces this weekend! ... show more
Reviewed in the United States on January 17, 2026 by Generally Booked

  • Overall, this toy was not even a one star
An adult worked on this toy for an hour and a half trying to put it together and it still continue to break apart and not work at all. I locked 12 toys for my 2 grandchildren for Christmas, most from the sensory section. This was a waste of money. It did not go together, It would not clip, and broken pieces trying to get it together. I would love a refund because this toy was junk. ... show more
Reviewed in the United States on December 30, 2025 by Charlie shore

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