
Don't buy this if you really want to build a track hot wheels can go at any speed. There is no bank on them and the curve is very steep. I grew up on inclines where you fly over the back of a flex track to take one turn at a time. This worked much better and I can't find any of them. I might have to pay someone to 3D print something for me. Coming back to the purchase though, I'm not sure why the straight parts are made out of hard plastic, but I prefer a flexible straight rail so I can lean or lean if I want to. The rigid frame has no multifunctionality. The only reason I gave it 2 stars is because it's durable. Besides, that's what he said.

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