The Learning Journey - Techno Gears - Bionic Biplane - 80+ Pieces - Toy Interlocking Gear Sets for Boys & Girls Ages 6-12 Years - Award Winning Toys, (210536)

My grandson loves it! He enjoys putting it together and taking apart to create different looks.

We are loving this. Challenging to put together and so rewarding with the color and noises. My little is having fun changing the designs and taking it for walks

We experienced the same problems the negative reviews indicate, but found a workaround. 1. Make SURE you don’t mix up the large top cog (#3) with the large side-wheel cogs. They look similar but #3 is larger and flatter and you MUST put this one on top or the cogs don’t intercalate properly. 2. Just take the treads off. The treads get derailed and seizes it up, but it chugs along fine without the tank treads.

Got this as a gift for my son. Put it all together and it worked for about 10 seconds before siezing up. Double checked the instructions and everything was put together properly. Send to work if you hold it in the air, but as soon as there is pressure from putting it on the floor the motor isn't strong enough to work. You get what you pay for with this. Spend a little more money and get a product that actually works.

My 8yr old had so much fun building this. We love all the techno gear toys from the learning journey. Great STEM building kit and hours of fun.

The way its designed there is just no way for this to be able to move on its own. There's too much slop and distance between gear teeth. And hardly any of them will spin easily. I'm sure you could build something else with it. But its somewhat limiting on how you you can assemble the main body pieces.

There’s nothing I hate more than a toy you have to assemble only to have it not work at all. Don’t waste your money on this pile of plastic