Classic ELAN shank button sized 11mm (3/8). The shank back floats the thread and leaves a clean face, ideal for heavier fabrics and tailored garments where a low‑profile sew line is preferred. Use on coats, sweaters, waistbands and accessories. Cards include 4 buttons. Works with hand or machine sewing and feeds smoothly through buttonholes. Great for repairs, costume builds and small-batch studio work; dependable hold with repeat wear.