This ELAN 2-hole button is a low-profile sew-on closure for everyday garments, accessories, and repairs. It measures 20 mm (3/4") in diameter and comes carded with 2 button(s) for matching sets. Place it to align with existing buttonholes, then secure with sturdy thread and even tension for smooth fastening; test on a scrap to confirm needle size and stitch length, match thread weight to the fabric for a clean finish.