Very fun to put together with him and he loves cranking it!
He loves it.
Overall I am happt with the product and I will definitely keep the instructions so when my son is old enough, he can build it himself.The seller is also very helpful, she answered all my questions about this product.
My kid enjoys this toy, and it is very educational.
Got this for my son who just enrolled to a stem school this year so I thought this will be a good toy for him to play and discuss about science.
When he opened it, it was totally put together, broken and returned!
Who does this to kids??
But my son missed one of this part so he can't finish it.
This product was great at first.