Fender or Bumper - What's the Difference?

I’ve been boating for over 30 years. I always knew protection for my boat was needed when tied to a dock. This was a major concern at the Lake of the Ozarks because of the rough water. I thought a boat fender was the same as a boat bumper. When I started my own company manufacturing bass boat fenders for Ranger bass boats and others, I called them bumpers. After all these years I have learned a fender is a protection device for a boat; a bumper is something that provides protection for a boat but is fastened to the dock.  

Just goes to show you that you are never too old to learn something new.