They must have been rushing to buy toilet paper.
Probably the first thing I bought was a rear black tube. Comes in chrome too.
Never been hit in the rear since I got it installed in 2009. Or at least damaged badly by another vehicle in a car accident.
Some buy hitch step bars to achieve the same effect.
Lowers probability of a rear accident, but won't save you from major damage if somebody is not paying attention, texting, reckless, or drunk.