What is the meaning of Wristlet?

An elastic band worn to keep a glove from slipping off the wrist.

A decorative band or bracelet that encircles the wearer's wrist; especially, a closely knitted one to keep it warm; a muffetee.

A small handbag with a short strap for attaching it to the wearer's wrist.

A handcuff.

Source: wiktionary.org