This ELAN stitch-through button uses a four-opening layout for a balanced closure on garments and accessories, from everyday sewing to quick repairs. Each card provides 2 buttons in 19 mm (3/4 in), giving you a consistent size for shirt fronts, cuffs, sweaters, and light outerwear details. Sew in a cross or parallel pattern with firm, even tension, and check alignment and buttonhole fit before final stitching to help reduce twisting in wear.