This ELAN sew-on shank button is designed for closures where you want a little lift from the fabric, such as outerwear, knits, and layered plackets. It includes 3 button(s) sized 18 mm (3/4 in) with a shank back that creates thread clearance and helps the button sit comfortably over thicker seams. Sew through the shank with strong thread, secure the stitches firmly, and test against the buttonhole or loop so fastening stays smooth with wear.