A stud for a tuxedo is a type of decorative button that is used on the front of a tuxedo shirt in place of regular buttons. These studs are typically made from metals such as silver or gold and come in various shapes and designs to add an elegant touch to the formal attire.

To use studs, a tuxedo shirt will need to have buttonholes that are specifically designed to accommodate them. The studs are then fastened into these buttonholes to secure the shirt closed. Studs are often sold in sets and can be found in a range of colors and styles to match the tuxedo and other accessories.

Using studs on a tuxedo shirt can add an extra touch of sophistication and elegance to the outfit, making it suitable for formal events such as weddings, galas, and other special occasions. They are an essential accessory for any man looking to elevate his formal attire and make a statement with his style.