I'm telling you, you need this. It is amazing. Its so fun watching and manipulating the marble to go the way you want it to. If you're already thinking about it enough that you're reading reviews... get it!

We absolutely love this! We have a 4 y.o. who has had fun building and watching the marble roll through her creation. She's not quite at the level of setting it up for the marble to go through the whole thing. However, she observes where it comes out and realizes that it must be stacked differently to go through the holes the way she wants. So it's a great learning tool for her! As for the quality, I agree with others that it's good quality and not flimsy pieces. My only suggestions for improvement would be something to put it in and a bag/sack for holding the marbles when not in use! Otherwise, GREAT toy!

this was a great gift to give for a 4 year old! he loves it

My niece loves it and it was on sale.

This keeps my daughter busy for hours. She sorts all parts by color first. Then she picks a marble run design and follows step by step building using easy to follow visual directions that are included. Tons of fun everytime!

This was for my 3 year old and I had to put it together. It wasn't the easiest thing to do. I am hoping as he grows that he will get more creative and put it together by himself.

Very popular amongst the 4 year olds.

My children and their parents love this thing!! It’s fun and comes with super simple building instructions if you want to build one of their cool structures or you can build your own! I’d buy again, I did purchase the other marble run set that was larger as well.

We’ve had this marble run toy for at least 6 years and it has stood the test of time. It was originally purchased for my older son and now his younger brother plays with it. Somehow we have not lost any of the pieces except some of the marbles, but those are easily replaced.

Finally a marble run that is good quality! We went through 3 marble runs and they all broke. Not this one!

We added the clear marble run parts to the regular set, and my son is obsessed!

i was wary based on a coulle of reviews but this clear marble maze is fantastic. I bought it for my 3 yearold grandson and he adores it. its sturdy and easy to put together. everything operates as it should. highly recommend and a great price for the value.