Shank-back sewing buttons sized 13mm (1/2"), supplied 4 per card. The raised shank keeps thread hidden and leaves space for thicker fabrics so garments button smoothly and drape cleanly. A versatile choice for replacements and new projects, they suit jacket fronts, knitwear and accessories as well as costumes and craft makes. Use to refresh closures or add a neat, low-profile finish wherever a shank button is preferred.