Tuxedo shirt cuff links and studs set in silver finish rims. Studs are sometimes called tuxedo button covers even though they do not cover the buttons they are used instead of the buttons. Some tuxedo shirts come with a set of 4 regular buttons on a string to use instead of studs and other have the buttons sewn on the shirt with a button hole next to it so you can use the studs.These are a great quality set. Don't let the low price fool you. They come in a velveteen gift box.They come in many colors to match your dates dresses for Proms and Weddings. The set is made of an amalgam metal and is plated with Rhodium a higher sheen richer look then silver.