JIXIn 3in1 Marble Runs for Kids 4-8/Building Blocks Compatible with LEGO DUPLOS for Age 2-5/Marble Run for Kids Ages 3-5 STEM Toy Set with 164 Pcs Classic Big Block/Gift Toys for Kids Age 3 4 5 6 7 8+

What a fun activity for your kids. I bought this for my son and daughter to Play instead of having endless of screen time. They love it snd have been playing with it for hours! It’s great quality plastic and had so many pieces for variety! Great colors and size

I bought this initially for my two year old kid, but it ended up being my favorite! It’s quite entertaining building the marble run towers. The blocks are very compatible with lego duplo blocks, so quite big in size for small kids. However, the instructions are sometimes a little confusing, and it took me sometime to follow with some back and forth. Also, it sometimes would fell apart when I tried to push new blocks on, and it was quite frustrating when it happened, especially when a two year old boy was messing around lol. But I eventually got it working when he was not home! My son is very happy playing with the ball running through the towers!

The product itself is great, however the package was missing six balls and one of the red corners was misshaped and not useable.

There are not enough stars for this great marble run set! I was a little worried about purchasing an off-brand Lego/Duplo set as we had tried a non-Lego block set in the past and they were cheap plastic with sharp edges that either didn't stay/fit together or were impossible to pull apart. This set though was absolutely perfect! You couldn't even tell the difference between these and the official Duplo blocks! They look and feel exactly the same and fit together perfectly. They also have lots of fun pieces with tall towers and all kinds of curves, slides, and marble drops. If your child loves playing and building with Lego/Duplo, then these are an absolute must have! :-)

Hits the main goals: duplo compatibility, ability to build different marble runs.I have an autistic 3.5b year old. He loves playing with it, but can easily get frustrated if things don't work or fall down. So some things to keep in mind:The instructions as is don't produce stable structures. They will fall down easily. If that's the kind of thing that will upset your child / cause a meltdown: build stronger structures, with more redundant support, cross connections for additional stability, etc. This set works with other Duplo bricks so you can get as creative as you want.Couple things I wish they did:add a connector at the bottom of the ingress of the funnel pieces, so you could securely connect them to the where the ball comes from.Add a connector underneath the other side of the u-shaped pieces, again for better stabilitymore longer bricks to create more stable structures.

I’m leaving this review because I’m very salty about my customer service experience. So my child ripped up the instructions after getting frustrated with the flimsiness of a model he was trying to construct. I reached out to the customer service for another copy of the PDF which I did plan to laminate just in case for the next time but instead I received this whole spiel about VIP service after scanning some QR code that was provided in the box originally and in all that time they could’ve just attached the PDF. Now I have to throw the whole set away because I don’t have the original card they were talking about because it could’ve got ripped up with the rest of it. I just don’t understand why not just offered to sell it to me for five bucks or something putting us through extra hurdles for some instructions is ridiculous to me. The kind of service they’re offering is more relevant to electronics or something like that not blocks. I don’t need a warranty on building blocks. I just need replacement instructions simple courtesy any manufacturer would provide from what I’ve observed.

Excellent children’s building set! My child enthusiastically assembled various models, which helped develop his imagination and fine motor skills. The quality of the pieces is outstanding—they’re durable, safe, and easily connect together. The set brought a lot of joy and proved to be a great way to spend quality time. Highly recommended!

Hard to put together