Shank-back sewing button sized 12mm (1/2"), packaged 4 per card. The raised shank hides stitches and leaves clearance for thicker fabrics so closures fasten smoothly without puckering. Well suited to coats, jackets and knitwear, it provides a tidy, low-profile finish that helps heavier garments drape cleanly. Use as a replacement or to add a polished closure on outerwear, accessories and costume work.