wristband
/ˈɹɪs(t)ˌbænd/noun
Elementary
1
The cuff of a sleeve that wraps around the wrist.
2
A strip of material worn around the wrist, e.g. to absorb perspiration, especially in sports.
3
A decorative band or bracelet that encircles the wearer's wrist.
4
A band that supports a wristwatch.
5
A cord worn around the wrist, used to hold a small object such as a knife: a lanyard