This ELAN shank button is designed for closures where you want added clearance over thicker fabrics, knits, and layered buttonholes. The card includes 3 buttons sized 18 mm (3/4 in) for coats, cardigans, jackets, and accessories that need a slightly raised button profile. Sew through the rear shank with strong thread, secure the stitches on the underside, and test the fit in the existing loop or buttonhole before wear.