Shank-back buttons sized for coats, cardigans and structured garments. The raised shank protects thread and lets the button sit above thicker fabrics for a clean drape. Smooth edges aid handling and give a professional finish on jackets, knitwear and bags. Select the 21 mm (7/8in) size to match your buttonhole and seam details. Each card includes 2 button(s). Test placement on fabric scraps and reinforce with interfacing as needed.