The 15mm Round Waist Extender Button is a round button designed to extend the waistband of trousers and skirts, allowing you to gain a few extra centimeters of comfort without replacing the original button. It is sewn next to the existing button, and the pair formed by the two buttons is used to fasten the waistband more loosely, offering a practical and economical solution before resorting to more complex sewing alterations. The 15mm size is suitable for trousers and skirts with medium-sized buttons and is discreet when applied inside the waistband.