Shank‑back sewing button sized 20mm (3/4"), 2 per card. The raised shank keeps stitches hidden and allows room for thicker fabrics so closures fasten smoothly without puckering. Well‑suited to coats, jackets and knit garments, it provides a neat, low‑profile finish that helps heavier fabrics drape cleanly. Use for replacements or to add a statement closure on outerwear, accessories and costume work.