It is usually wrapped around a weight, such as sand or beans so it can be thrown accurately over greater distances and cannot easily be blown away.
Brown was forced to sit out three seasons because of the eye injury and settled with the NFL for a reported amount of $25 million.
[1] The idea for the penalty flag came from Youngstown State coach Dwight Beede[2] and was first used in a game against Oklahoma City University on October 17, 1941.
The National Football League first used flags on September 17, 1948 when the Green Bay Packers played the Boston Yanks.
[3] In October 2013, the NFL planned to use pink penalty flags throughout the month as part of the league's breast cancer awareness initiative.