135 reviews for Crazy Marble Run Track Building Blocks

1. Vinnie GreerVerified Purchase

   Rated 5 out of 5

   This is the best little set. Got it for my toddler for Christmas but my older child loves it even more. It was missing 2 pieces, I emailed the company...More

   This is the best little set. Got it for my toddler for Christmas but my older child loves it even more. It was missing 2 pieces, I emailed the company and they went way above and beyond and sent us another set. They are that amazing. Very study great quality blocks!! We have been having a blast!
   Leona GainesVerified Purchase

   Rated 5 out of 5

   I wish I had found this sooner but my 5 year old loves it. It fits wonderfully on our existing duplos. My only suggestion would be to add 3 more hills...More

   I wish I had found this sooner but my 5 year old loves it. It fits wonderfully on our existing duplos. My only suggestion would be to add 3 more hills for an even 100 parts. We liked it so well we got a second one (need additional blocks to get that high) so we would have more hills to work with.
   Lillie CopelandVerified Purchase

   Rated 5 out of 5

   Very nice big block set. They do match up with duplo sized blocks well so far. The instructions are fairly clear most of the time with two designs ava...More

   Very nice big block set. They do match up with duplo sized blocks well so far. The instructions are fairly clear most of the time with two designs available. The base boards are nice and around a square foot. Tracks and blocks fit together well, but there is an awkwardness when slightly misaligned.
   Belle MacdonaldVerified Purchase

   Rated 5 out of 5

   We bought this product for our daughter to use with her Duplos. They are completely interchangeable. I don’t know who enjoyed them more, her or her pa...More

   We bought this product for our daughter to use with her Duplos. They are completely interchangeable. I don’t know who enjoyed them more, her or her parents. They provide hours of fun. The only problem now is that I need to buy another set so that the parents can create longer and more exciting tracks.
   Josh NelsonVerified Purchase

   Rated 5 out of 5

   I bought this for my four year old but truth be told, I'm the one who loves to set up the marble runs. She loves the variety of the pieces though, and...More

   I bought this for my four year old but truth be told, I'm the one who loves to set up the marble runs. She loves the variety of the pieces though, and uses them as regular duplo blocks. The set comes with a ton so you won't be bored. Just hang tight to the balls that come with the set! They fit perfectly.
   Muhammad CollierVerified Purchase

   Rated 5 out of 5

   We got this for my 2.5 year old. He has played with it every day since Christmas. It's his absolute favorite toy. It is compatible with his other Lego...More

   We got this for my 2.5 year old. He has played with it every day since Christmas. It's his absolute favorite toy. It is compatible with his other Legos we had, which we use to build different towers. I thought the balls would be a bit bigger, but they are fine for a 2.5 year old who doesn't put things in their mouth.
   Maisie BlanchardVerified Purchase

   Rated 5 out of 5

   I'm always looking for things for my daughter. There are 3 ways to build (2 smaller ones or one large one). She needed help assembling this and was ab...More

   I'm always looking for things for my daughter. There are 3 ways to build (2 smaller ones or one large one). She needed help assembling this and was able to play independently after assembly. The instructions were easy to follow. I love that it fits her large Legos we already have. She will enjoy this for the next few years.
   Sana StevensVerified Purchase

   Rated 5 out of 5

   Such a fun toy! So many different ways to set up! Keeps my son entertained for a while. Makes him use his imagination which is a nice change from all ...More

   Such a fun toy! So many different ways to set up! Keeps my son entertained for a while. Makes him use his imagination which is a nice change from all the battery powered toys put there. Would be nice if it came with a few more blocks to make bigger tracks, but not a dealbreaker as it worked with the duplo blocks we already have.
   Edmund HoganVerified Purchase

   Rated 5 out of 5

   Sent this to my 3 year old grandson. He needs no more toys, but I thought this would be a great addition to the Duplo set that he already had. Luckily...More

   Sent this to my 3 year old grandson. He needs no more toys, but I thought this would be a great addition to the Duplo set that he already had. Luckily his parents agreed! It's a big hit and has been fun for all. A little tricky to follow the directions, but in the end each structure highlighted in the instruction book was built.
   Joseph DavilaVerified Purchase

   Rated 5 out of 5

   It's a wonderful form of entertainment for preschoolers and grade-school children. Well made and high quality, the pieces stack up flawlessly and you ...More

   It's a wonderful form of entertainment for preschoolers and grade-school children. Well made and high quality, the pieces stack up flawlessly and you can create different shapes. Also it looks like it will hold up really well. The parts seem durable and sturdy. It is a great way to get kids to think outside the box while having fun!