Try this video......
That's not really a video of it being used. That's a video of them just showing how it works. Use involves a dock. I can't picture that tiny fender effectively protecting from a dock. And was actually referring to their trawler customer with my statement. Perhaps what's making it hardest for me to picture is the size of the fender in the video. It can't possible protect well enough in the conditions we generally deal with. Use it boat, dock, wind, current, waves, tide.