What is "arm band"

Usage examples of "arm band".

He slipped his MP arm band on, she handed him the white Constabulary helmet and a lunch bucket.

FROM THIS DAY ON ALL JEWS MUST WEAR A YELLOW ARM BAND WITH THE STAR OF DAVID!

But he pulled off his own arm band before he turned to his fellows with a spurt of the twittering speech they used among themselves.

The arm band was beautiful in its craftsmanship, a work of art, and it was a gift of friendship.

When he had worked his way back down levels of increasing weight until he found himself at one gravity and could go no further he stopped the first cadet with a black arm band whom he could find and threw himself on his mercy.

Sure enough, each had an arm band like his own, a swathe of green around his upper arm.