PENALTYFLAG
Penalty flag
The penalty flag is a yellow cloth used in several field sports including American football and lacrosse by game officials to identify and sometimes mark the location of penalties or infractions that occur during regular play. It is usually wrapped around a weight, such as sand or beans so it can be thrown accurately over greater distances. Many officials previously weighted flags with BBs, but the practice was largely discontinued after a flag thrown by NFL referee Jeff Triplette struck Cleveland Browns offensive tackle Orlando Brown in the eye during a 1999 game vs. the Jacksonville Jaguars, causing a serious injury to Brown, who later attacked Triplette and ...The above text is a snippet from Wikipedia: Penalty flag
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