Here's a link to the site that sells it.
http://www.hamradiofun.com/yo-yo-vee.htm
The guy security guy who told me I couldn't hang anything on their trees may not have known what he was talking about, but once my XYL had heard what he said it was the gospel from there on.
I was going to run it up my fiberglass mast, but breaking the radio made that a moot exercise.
I'm sure I'll get other opportunities in the future to try it out, but I have heard pretty good things about the YoYo Tenna. They claim you can handle full legal power. However, I would be real hesitant to try full power in an RV park with all of the TV antenna booster campers use.