Cog Coaster / Marble Squad – Wooden Marble Run Kit

(17 customer reviews)

$38.99

(Free US shipping)

Availability: In stock

Cog Coaster / Marble SquadWooden Marble Run Kit: with its big rotating wheel and descending ramps it’s the perfect synthesis between art and engineering. A wooden 3D puzzle, exciting to build and even more exciting to play with, once it’s completed. It’ll bring many hours of hands-on activity and lots of fun for both kids and adults.

  • Challenge yourself and your kids with a fun and stimulating project
  • No glue required, only your curiosity and enthusiasm
  • A kinetic sculpture, beautiful to look at and even better to play with
  • The ideal gift for smart kids and curious adults

Product Information

  • Recommended Age: 14+ (or younger with the aid of their parents)
  • Assembling Time: approximately 6 hours
  • English Instructions Booklet included
  • Steel Marbles included
  • Safe and non-toxic
  • Product Size: 255*235*185 mm (10.0*9.2*7.3 in)
  • Wooden Pieces: 239

17 reviews for Cog Coaster / Marble Squad – Wooden Marble Run Kit

Customer Images

Image #1 from Julian C.
Image #2 from Julian C.
Image #3 from Violet C.
Image #4 from Violet C.
Image #5 from Dawson P.
Image #1 from Julian C.

Julian C.

This was so fun to put together. I would definitely purchase this or a similar one from Rokr again!!! There were a few pieces that were a bit difficult to get out of the wood sheets, but if you were careful, they came out without breaking. This took me about 4-5 hours to assemble. Great product!

Image #2 from Julian C.

Julian C.

This was so fun to put together. I would definitely purchase this or a similar one from Rokr again!!! There were a few pieces that were a bit difficult to get out of the wood sheets, but if you were careful, they came out without breaking. This took me about 4-5 hours to assemble. Great product!

Image #3 from Violet C.

Violet C.

I've purchased all 4 marble runs Rokr made. This one I painted as I assembled it. My grandson loves it.

Image #4 from Violet C.

Violet C.

I've purchased all 4 marble runs Rokr made. This one I painted as I assembled it. My grandson loves it.

Image #5 from Dawson P.

Dawson P.

Amazing and super fun to build!!!! Only feedback is I wish there was a second piece at the bottom of the run (piece E22, pictured) to make the end taller. The reason why is if you use all the marbles included sometimes they jump off right there. No major issue, just annoying.

Image #6 from Dawson P.

Dawson P.

Amazing and super fun to build!!!! Only feedback is I wish there was a second piece at the bottom of the run (piece E22, pictured) to make the end taller. The reason why is if you use all the marbles included sometimes they jump off right there. No major issue, just annoying.

Image #7 from Alice L.

Alice L.

This was a great gift to get the kid off the screen. We spend hours assembling this together. After completing it, we left it on the desk and he can crank it whenever he is bored.

Image #8 from Lorenzo D.

Lorenzo D.

I'm into building things, retired. I sat down after breakfast and had at it. Three hours and 45 minutes of very low-stress enjoyment later, I had a completed gadget.

Image #9 from Gabriel C.

Gabriel C.

My review is for the “marble squad” version of the kit.This is a complex kit that works surprisingly well for something with 8 metal pieces and hundred of plywood bits.The design is very thoughtful and a lot of work went in to designing something that’s difficult build wrong:* every piece has its pet number etched *on* the part so you can identify it even if you pop it out too early* all identical pieces have the same part number making it easy to keep parts sorted* lots of pieces either can’t fit when flipped over, or are symmetrical so it doesn’t matter* subgroups have little labels etched on them so they’re easy to identify when you need them* the smallest pieces, the tiny pegs, all have spares includedMy few minor tips:* the laser cut wood can be harder to pop out with your fingers, an exacto knife might be useful here* the included tool can be used to slip the little plastic fairings on the steel shaft. Otherwise this step is quite difficult!* use the included wax liberally every step where it’s indicated on the instructions!*dont worry too much if the gearing doesn’t look perfectly true in the first stages of assembly, the whole thing gets more rigid once it’s completed and the stair stepper particularly feels quite janky until the bottom pieces go in. It’s a really lovely kit, I’ll definitely try another ROKR kit in the near future

Image #10 from Gabriel C.

Gabriel C.

My review is for the “marble squad” version of the kit.This is a complex kit that works surprisingly well for something with 8 metal pieces and hundred of plywood bits.The design is very thoughtful and a lot of work went in to designing something that’s difficult build wrong:* every piece has its pet number etched *on* the part so you can identify it even if you pop it out too early* all identical pieces have the same part number making it easy to keep parts sorted* lots of pieces either can’t fit when flipped over, or are symmetrical so it doesn’t matter* subgroups have little labels etched on them so they’re easy to identify when you need them* the smallest pieces, the tiny pegs, all have spares includedMy few minor tips:* the laser cut wood can be harder to pop out with your fingers, an exacto knife might be useful here* the included tool can be used to slip the little plastic fairings on the steel shaft. Otherwise this step is quite difficult!* use the included wax liberally every step where it’s indicated on the instructions!*dont worry too much if the gearing doesn’t look perfectly true in the first stages of assembly, the whole thing gets more rigid once it’s completed and the stair stepper particularly feels quite janky until the bottom pieces go in. It’s a really lovely kit, I’ll definitely try another ROKR kit in the near future

Image #11 from Declan N.

Declan N.

A fun project!!!

Image #12 from Paxton M.

Paxton M.

Really enjoyed putting this together as it required close attention to detail a lot of the steps. All through the instructions ,there was videos one could see if you were doing it right. I plan on doing some more of these models.

Image #13 from Kash H.

Kash H.

Buy yourself some wood glue when you buy this. Pieces don’t pop out as easily as in other 3D wooden puzzles. Other than that, a truly fabulous project.

Image #14 from Gabriel B.

Gabriel B.

My sons received a bunch of these puzzles for Christmas, and they love them. A large LEGO set usually only takes them an hour or two to put together. These took a little bit longer. They’ve already asked for more!!

Image #1 from Julian C.
Image #2 from Julian C.
Image #3 from Violet C.
Image #4 from Violet C.
Image #5 from Dawson P.
Image #6 from Dawson P.
Image #7 from Alice L.
Image #8 from Lorenzo D.
Image #9 from Gabriel C.
Image #10 from Gabriel C.
Image #11 from Declan N.
Image #12 from Paxton M.
Image #13 from Kash H.
Image #14 from Gabriel B.
4.7 Rating
1-5 of 17 reviews
  1. This was so fun to put together. I would definitely purchase this or a similar one from Rokr again!!! There were a few pieces that were a bit difficult to get out of the wood sheets, but if you were careful, they came out without breaking. This took me about 4-5 hours to assemble. Great product!

    Image #1 from Julian C.
    Image #2 from Julian C.
  2. I’ve purchased all 4 marble runs Rokr made. This one I painted as I assembled it. My grandson loves it.

    Image #1 from Violet C.
    Image #2 from Violet C.
  3. Amazing and super fun to build!!!! Only feedback is I wish there was a second piece at the bottom of the run (piece E22, pictured) to make the end taller. The reason why is if you use all the marbles included sometimes they jump off right there. No major issue, just annoying.

    Image #1 from Dawson P.
    Image #2 from Dawson P.
  4. This was a great gift to get the kid off the screen. We spend hours assembling this together. After completing it, we left it on the desk and he can crank it whenever he is bored.

    Image #1 from Alice L.
  5. I gave this to my brother-in law for Xmas. He started on it the day after he got home & finished it by the next day. He said he really enjoyed putting it together. Playing with it was a bonus.

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Julian C.

October 9, 2022

This was so fun to put together. I would definitely purchase this or a similar one from Rokr again!!! There were a few pieces that were a bit difficult to get out of the wood sheets, but if you were careful, they came out without breaking. This took me about 4-5 hours to assemble. Great product!

Violet C.

October 3, 2022

I've purchased all 4 marble runs Rokr made. This one I painted as I assembled it. My grandson loves it.

Dawson P.

July 14, 2022

Amazing and super fun to build!!!! Only feedback is I wish there was a second piece at the bottom of the run (piece E22, pictured) to make the end taller. The reason why is if you use all the marbles included sometimes they jump off right there. No major issue, just annoying.

Alice L.

June 5, 2022

This was a great gift to get the kid off the screen. We spend hours assembling this together. After completing it, we left it on the desk and he can crank it whenever he is bored.

Eliza C.

January 20, 2022

I gave this to my brother-in law for Xmas. He started on it the day after he got home & finished it by the next day. He said he really enjoyed putting it together. Playing with it was a bonus.

Atlas B.

January 17, 2022

Bought for 10 year old. He loved putting it together and was about 6 -7 hours of challenge and fun. Running the marbles once assembled is limited however. The light wood pieces break and lose their connections fairly quickly. We started using glue to keep some pieces together, but just not really built to last. Maybe next gen. will be better..Looks great on a shelf.

Maddox S.

January 9, 2022

Hesitated on buying this for our 9 year-old given the age recommendations, but he completed the task with ease and without any assistance. Well done ROKR.

Lorenzo D.

December 26, 2021

I'm into building things, retired. I sat down after breakfast and had at it. Three hours and 45 minutes of very low-stress enjoyment later, I had a completed gadget.

Gabriel C.

November 10, 2021

My review is for the “marble squad” version of the kit.This is a complex kit that works surprisingly well for something with 8 metal pieces and hundred of plywood bits.The design is very thoughtful and a lot of work went in to designing something that’s difficult build wrong:* every piece has its pet number etched *on* the part so you can identify it even if you pop it out too early* all identical pieces have the same part number making it easy to keep parts sorted* lots of pieces either can’t fit when flipped over, or are symmetrical so it doesn’t matter* subgroups have little labels etched on them so they’re easy to identify when you need them* the smallest pieces, the tiny pegs, all have spares includedMy few minor tips:* the laser cut wood can be harder to pop out with your fingers, an exacto knife might be useful here* the included tool can be used to slip the little plastic fairings on the steel shaft. Otherwise this step is quite difficult!* use the included wax liberally every step where it’s indicated on the instructions!*dont worry too much if the gearing doesn’t look perfectly true in the first stages of assembly, the whole thing gets more rigid once it’s completed and the stair stepper particularly feels quite janky until the bottom pieces go in. It’s a really lovely kit, I’ll definitely try another ROKR kit in the near future

Elias S.

July 6, 2021

Overall a great present or gift to yourself if you enjoy trinkets and assemblies. The overall quality of the product is for the most part great other than when putting the track pieces together at the end. You are required to fit small extensions into holes in the track and the extensions are prone to breaking. Technically there is no glue required but I would still recommend it.

Declan N.

June 29, 2021

A fun project!!!

Paxton M.

May 2, 2021

Really enjoyed putting this together as it required close attention to detail a lot of the steps. All through the instructions ,there was videos one could see if you were doing it right. I plan on doing some more of these models.

Louis C.

April 6, 2021

Easier to assemble than it looks. Just a little issue with getting parts to set where they need to be. Marbles need a little help to roll because I couldn't get some parts of the base all the way down.

Elliott P.

March 5, 2021

We bought this for my 11y daughter who asked for it for the holidays. It was really fun for her and I to put together and she loves it. Some of the pieces are hard to get out so make sure you use the tools it comes with.

Omar H.

February 20, 2021

This is my twelfth wooden puzzle project and I just ordered my thirteenth. From different company's. These are excellent winter projects. I particularly like these marble mazes. This is my third of these and I have motorized them. They are entertaining to watch. These puzzles can be quite challenging at times. Just be patient and take your time there is much enjoyment to be had. I have gotten these for my last three birthdays and I look forward to them. I am sixty-seven years old and eight years retired.

Kash H.

January 17, 2021

Buy yourself some wood glue when you buy this. Pieces don’t pop out as easily as in other 3D wooden puzzles. Other than that, a truly fabulous project.

Gabriel B.

January 14, 2021

My sons received a bunch of these puzzles for Christmas, and they love them. A large LEGO set usually only takes them an hour or two to put together. These took a little bit longer. They’ve already asked for more!!

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Cog Coaster / Marble Squad – Wooden Marble Run Kit
$38.99

Availability: In stock