ELAN sew-through buttons provide a neat, low-profile closure for garment making, mending, and DIY accessories. This card includes 2 4-hole buttons sized 20 mm (3/4 in), a common diameter for shirts, cardigans, and general repairs when you want a simple, flat finish. For best results, match the button size to your buttonhole and test stitch spacing on a scrap so the closure sits evenly and holds up to regular wear.