Help please! I do not know anything about these. (K'Nex rollercoasters)
My 7 yr old son is wanting a K'Nex rollercoaster for Christmas. I have never seen these in person, but judging from pictures they look huge. We do not have a lot of extra room so I am wondering if this is something that he will be able to easily put together and take apart? Or is this something that once it is built it is intended to stay built?