National Geographic Glow Marble Run 250-Piece Building Set for Kids | 50 Glow-in-the-Dark Glass Marbles, 135 Tubes, 55 Action Pieces, 10 Bases, Marble Maze, STEM Physics Toy, Storage Bag

Our 5‑ and 2‑year‑olds absolutely love the NATIONAL GEOGRAPHIC Glowing Marble Run—they’ve played with it every day since we bought it. The glow marbles are a big hit, especially in dim light, and the pieces click together solidly so the tracks don’t collapse mid‑run. It’s great for family time: we build together, experiment with different layouts, and the kids learn cause‑and‑effect and problem‑solving while having fun. Cleanup is easy, and the set has enough pieces to keep designs fresh. Super engaging, sturdy, and a wonderful hands‑on STEM toy for mixed ages.

Every child who loves to build will love this marble run. Very sturdy, lots of colorful pieces. My grandson plays with this marble run every day. We even bought a second kit so my grandson can build taller and more elaborate runs. National Geographic Marble Run is for kids from 4-99 years old. Be aware that it does contain small pieces.

I wanted the kids to leave me to build my own contraption rather than taking all the good parts for themselves. We've played with the marble run on multiple occasions and it has been a joy each time. Great gift idea at a reasonable price.

Ordered the large set, mostly because the other one wasn't in stock at the time, and now I'm very glad I did. There are always left over pieces because we're still learning how to really build with this. We've built very tall ones and I'm hoping to figure out more ways to build wider and not so tall. There are so many options! Lots of interesting shapes and pieces to use. The glowing marbles are very nice and you can also use regular glass marbles so that's a plus. The video I've included is just one of many we've built. I say "we" meaning me and my 7 yr old granddaughter. The pieces fit together snugly for the most part and the only problem with stability is using on a wood floor and building really high. I've learned to add stabilizing pieces connecting the various legs as we build up and started building on carpet runners that I've acquired. The one problem is the cat! She loves running between the various legs and pawing at the marbles coming down. This is great fun and you can spend hours with it. The net bag it comes with to put the pieces in is handy for transporting back and forth. All in all it's well worth the price, in my opinion. So far I've been impressed with National Geographic's products.

This was obviously a returned item. Half of the pieces were in the black bag and half were loose in the box. All of the pieces were there.My grandson's enjoy playing with it. Very entertaining.

My boys have so much fun with the marble run. My living room always turns into amazing run. Some of them work and sometimes they have to redo it. They are easy to put together and easy to take apart

My grandsons play with these things for hours, creating new paths and layouts. The size of this set allows for so many configurations that they keep their mind active without getting bored. Their only disappointment is when we tell them it's time to stop! We knew they'd love this set, but didn't realize how much. Well made, colorful and just plain fun! I even enjoy coming up with ideas.

The only thing better than playing with these as a kid is building a run with your kid years later. Took our time and built it all the way down the stairs on a rainy day after Christmas. So easy and super satisfying to see it all come together. She loves the glow-in-the-dark marbles, just a little difficult to film and walk down the stairs in the dark, haha. She can’t wait to build more!

I chose this over cheaper ones that did look very similar and really feel like it was worth the money. I bought the bigger 250 one for my 9 year old's birthday. My 12 year old daughter loves it just as much, so does my husband. Huge hit!

Great addition to an existing set. My boy is having so much fun. Possibilities are endless.It’s easy to assemble and quite sturdy.Recommended *****

Giving great fun to children and adults alike

My 7 year old boy loves this item but the only problem I find it's the manual could have more types of different assembling examples.

Glow in the dark is poor. Tiny UV light that lights part of the track in the dark.