Originally Posted by wingracer
If they are the ones I'm thinking off, I don't like them. It's easy for a car to just run right over them and have a head on crash with another car.
Yes light weight, easy to run over and land in the wrong lane and total 2 cars .... sometimes more.
We use them for some exhibitions, just for the weight and ease of set up, but not for racing!!!
For racing if you can afford, CDC Click Track, or make your own out of 3" white plastic down spouts. Not the ribbed one, smooth square. See a Do-it Best Store.