I bought these a while back, so that other drivers could see my trailer. It has been hit a couple times because it rides very low. These flags really seem to work! They are bright and very durable. Only complaint is that they seemed to fray quite a bit after just a few uses. Not what you'd expect for something that is designed for automotive use. But they seem to do the job well and you can't argue with the price. 4 stars

I got several of these flags for my car trailer, which had been hit more than once by other drivers who couldn't see it because it was too low. They are definitely flags, and they are definitely red, but that's where the benefits end. They started fraying almost immediately, and now they are just tatters of red threads. Which means they really aren't safe at all, as they have been spewing bits of plastic all over my trailer and other drivers. So I am back to the an old red rag until I find something better. 1 star