Cufflinks are a pair of decorative fasteners used to secure the cuffs of a dress shirt. They are typically made of metal, but can also be made of other materials such as plastic, glass, or even wood. Cufflinks come in a variety of shapes and sizes, and can be engraved with initials or other designs. While cufflinks are not strictly necessary, they can add a touch of style and sophistication to any outfit.
There are two main types of cufflinks: fixed and convertible. Fixed cufflinks have a rigid bar that passes through both layers of the cuff, while convertible cufflinks have a hinge that allows the bar to be folded down for easier insertion. Convertible cufflinks are more popular than fixed cufflinks, as they are easier to put on and take off.