Gecko Run Marble Run Deluxe Starter Set by Thames & Kosmos – Vertical Marble Run w/Flexible Tracks, Loop & Trampoline Tricks, Fast, No-Mess Setup, Residue-Free Nano-Adhesive Pads for Creative Play

The media could not be loaded. This is just the coolest toy. My son wanted a marble run but of course I couldn’t just get a dinky normal one. I found this and knew it was the way to go! Endless possibilities and configurations. This is probably best for kids aged 7 and up. I honestly think older kids would like this too. There are easy ways to create marble runs but there are a lot of difficult pieces that take trial and error that bigger kids would like to explore. The pieces have always “stuck” well for us. This toy is a top buy! Love the innovation.

This is such an exciting-buy!Our 4.5 & 7.5 yr old boys are marble-run KINGS! — So when they seen this in the 2024 Amazon Toy Guide, we KNEW it was gonna be on their Christmas lists! LolOverall the design is very intricate & the quality, from what i could tell, was excellent! - As far as “how easy it was to assemble,” i will have to update my review AFTER santa comes! LolWe are impressed with the size of this item! For $60, you get the base set + (2) expansion packs + a few “extras!” Excellent value & fun for the whole family!

It's pretty cool, but a bit over priced in my opinion. I have it on a very smooth and clean wall in my son's room and it sticks most of the time. The funnel peices don't stay stuck very well but the tracks peices do pretty good. My boy likes it, but gets frustrated when he can't get a peice to stay stuck.

Very fun activity for my son, but the sticky mounts that come with the kit aren't very strong. After about 5-10 times sending the balls down the track, the sticky mounts stopped holding onto the wall.

I really wish that I read through the reviews BEFORE I bought this. We designated a wall spot just for this track and it won't stay stuck! Its glossy paint and I even wiped it down to remove dust first, no luck. My daughter is very frustrated because it would actually be alot of fun. I am going to look into getting a large peice of sheet metal and gluing magnets onto the back of the pieces instead. I really like the idea of this toy and was really looking forward to it, so to say I am frustrated is an understatement. I wish things just worked how they are suppose to!!

We got this for our 11 year old son. He has used it every single day. The suction cup option is perfect. He has it set up on our glass door and every day he's changing it and testing it. It's been perfect for cold winter days. Keeps him occupied and helps him learn.

For context, my 6 year old son loves STEM projects and games. That should explain why I chose to get this for Christmas. Long story short, none of the stickers stuck to any of our walls, the refrigerator, the dishwasher, the windows, or basically anything that this product suggests building on. Now, that was extremely frustrating because of the effort we made to re-build our concepts several times over. Moving onto the second issue, the marbles or metal balls are way too heavy for this concept in my opinion. They move entirely too fast because of this the bridges and cups for the ball to land into do not support this. Could be the lack of quality product over-all though.I whole heartedly discourage you from buying this. Look into other brands. We got more frustrated over a toy than we should have. I guess because we really wanted it to work but ultimately it wouldn't. Despite trying all of the recommendations. But you really shouldn't have to accommodate a toy as much as we did. So. I hope this helps any potential buyers.

This marble maze is amazing! I bought this as a last minute Christmas gift for our 12 year old son. Wasn't sure if he would be too old for it, but he loves to tinker and has had fun putting these tracks on the patio door and coming up with designs for the track! It was a great gift!