Online: What exactly is the monofilament guideline? It's a fancy word for 50-pound test fishing line! Oh yeah, it also keeps cars from flying off the track. More Tips

Down the Track

Click to see a car in action. As the cars zoom toward the finish line, each is prevented from flying off the track by a continuous strand of monofilament line. The line is threaded through screw eyes that are mounted on the underside of the car's body.

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