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no, nfl footballs are a little larger than ncaa footballs
A football is 11 inches long, so a little bit over three footballs are in a yard.
12 new footballs are marked with the letter "K' for NFL football games.
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footballs are kept at 71o F
Information about NFL footballs can be found in many big name sporting good stores. You can also find information in library books or on the internet.
3000
They use them for practice.
because by the time you are in the NFL you are fully grown and you are bigger than when you where in high school.
Years ago, I was told each NFL home team must have 24 footballs on hand for the game.
they sign it with a marker
CowHide (I am not positive on this but I think it is)