This ELAN sew-through 2-hole button is a versatile closure for shirts, blouses, knitwear, and craft projects where a smooth, low-profile finish matters. Sized at 13 mm (1/2 in) across, it stitches on quickly through the two holes and includes 4 pieces per card for repairs, samples, or coordinated plackets. Use strong thread, knot securely on the underside, and test buttonhole fit and stitch spacing on a scrap before attaching to your final garment.