BATTOP Marble Run for Kids Ages 4-8, 167 PCS Classic Big Size Blocks Set, Crazy Marble Run Building Blocks with 4 Balls Race Track, STEM Toys Bricks Set Christmas Toys for Boys & Girls

This toy is excellent for encouraging creativity and fine motor skills. The pieces are designed to be easily snapped together and taken apart by little hands, which is a big plus. The thoughtful design makes building a breeze, and it's clear the creators focused on making a toy that is both educational and very fun for kids.

Not too easy for my 6 years old. An hour or so to complete. But she did it all by herself until the end. I got to make the marble balls snapped tight. Quite a beautiful set overall.

This is a cool toy, however, it says ages 4-8. I beg to differ! It's quite complicated to put together and even the adults struggle! I would be surprised if any 4 year old could do it without significant help! Once assembled however, it is a nice toy and my grandson had a lot of fun playing with it.

I bought this for my son's 5th birthday. He has built it almost every day for the last 3 weeks. It comes with directions for 2 ways to build. I felt the directions were clear. My son needed a little help with the directions at first, but can build independently now. There is a flaw: the marbles don't consistently make it all the way through the courses you build with the directions (hence the slightly lower rating on Easy to Assemble). Some times they do, sometimes not. That bothers me and my older kids (ages 8 and 10), but the 5 year old doesn't seem to care! I disagree with other reviewers who felt the pieces didn't fit together tightly. They are sturdy and fully compatible with duplos, and it really adds to the fun to combine them. I personally enjoy "tinkering" with the set and building new runs, as does the 5 year old. Building from the directions a few times first helps to understand how the different pieces work. If your child is a perfectionist or doesn't enjoy "tinkering" and "trial & error", they may find this set (or any marble run) frustrating. One thing I like about this duplo-based set over other marble run sets, is that it only takes a few of the pieces to easily build something that's fun to put marbles down. Plus, my kids are such frequent Lego users that there isn't much of a learning curve to making the set work. Overall, I'm glad we bought it!

It’s nice little but like legos falls apart after a 4 year old plays with it for 2 minutes

My grand kids love it, they play with it everyday

I bought as a gift from my brother to my son. He loves it, he will put the balls on the top and watch them go down for hours, he helps to put it apart and put it together. We added other Lego pieces for structural issues, I felt like it is not enough pieces to make it tall and sturdy. We rearranged and did our own way! It is very fun, it has been his favorite toy for over a month now.

This marble run is awesome!!!! it comes with 4 balls to use that are bigger than marble size. Regular marbles also work nicely with this set & play nicely on the xylophone. It comes with more than enough pieces, FULL INSTRUCTIONS of how to build a number of different designs. TAKE MY WORD YOU WILL NOT REGRET BUYING THIS! I am a content maker on YouTube & this fit the bill 200% Love it!

Bonito y retador para el niño a desarrollar sus habilidades constructivas

Just OK - the pieces dont fit together firmly so it all falls apart at the slightest nudge. I was quite surprosed given all the glowing reviews! Wouldn't recommend.