Captain Morgan· Registered
Do they really work? I don't know, but I will tell you this. I never had those things on my car, and never had a deer run out in front of me. I put a set on my car one year, and within two weeks, a deer ran out in front of me. I took the things off, and didn't have any more incidents. So I don't know if they work or not, but I know that I won't be buying another set of them.