Cufflinks (also cuff link or cuff-link) are decorative fasteners for dress shirt cuffs that do not have sewn-on buttons. Cufflinks may be worn with the shirt cuffs 'kissing' - pinched together - or 'barrel-style' - one overlapping the other. Cufflinks come in a wide variety of shapes, sizes and designs. Use novelty cufflinks to add some flair to an otherwise basic suit. Or wear a more traditional style cufflink to show a little extra class. Whichever way you go, one thing is clear, you should never be caught in a formal outfit without a good pair of cufflinks!
Sets refers to any type of articles of clothing or group of things which are considered to be of the same kind and that can be paired together and are so used. Layettes are one example of a group or set of articles of clothing.