Game Used K Football??

[JDF5244]

Hey guys:
Can someone please tell me what a "Game Used K Football"is?
Appreciate it,
Jordan

[Colinvandewetering]

NFL games use a different set of balls for kicking versus throwing and running. The K balls are stamped with a K to indicate that they are designated for kicking.

[JDF5244]

OK, that makes sense….I sort of thought it had to do with kicking but thank you for the clarification!
JDF