This ELAN shank-back button is a sew-on closure for garments, accessories, alterations, and craft sewing;It works well on coats, knitwear, jackets, skirts, and bags where a dependable closure is needed. The card includes 3 button(s) that measure 18 mm (3/4 in) across to match existing buttonholes or finish a new project. Sew on with sturdy thread, test placement before final stitching, and care for the finished item according to the garment label.