wristband

nouns

band consisting of a part of a sleeve that covers the wrist
wristband
is a part of
the part of a garment that is attached at the armhole and that provides a cloth covering for the arm
arm, sleeve
is a type of (narrower)
a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body)
band
a band of cloth or leather or metal links attached to a wristwatch and wrapped around the wrist
bracelet, watch bracelet, watchband, watchstrap, wristband