Although the first cufflinks appeared in the 1600s, they did not become common until the end of the 18th century. Cufflinks are items of jewelry that are used to secure the cuffs of dress shirts. Cufflinks can be manufactured from a variety of different materials, such as glass, stone, leather, metal, precious metal or combinations of these. Cufflinks are most commonly worn for formal events, weddings and with business attire. They should be worn when a full suit or a blazer is part of the overall attire, but today they can also be worn casually but always with style and elegance.