If you've watched any Ohio State football games, you've probably noticed the players' uniforms, especially their gray, sticker-filled helmets. But what is on those stickers? And what do they mean?

They are easily identifiable by their helmets -- not just Michigan's wings or Ohio State's scarlet stripe, but the stickers plastered all over them. The Wolverines and Buckeyes are two of 13 FBS ...

If you look closely, you'll notice stickers all over the helmets of Ohio State players. Some have just a handful, while others are covered on each side with white decals, making the headgear stand ...

Both team's uniforms also one feature two of the more iconic, clean and classic helmets there are in college football, with Ohio State's classic silver sticker-adorned helmets clashing with Notre ...