Embassy shank buttons feature a raised loop on the back that leaves space for fabric so garments fasten smoothly without puckering. This 11 mm (⅜ in) size suits coats, cardigans, jackets and structured projects where a little clearance improves drape. Card includes 4 buttons. Sew on by hand through the rear loop. A built‑in shank helps thicker fabrics sit neatly and makes buttoning easier while adding a clean, polished look to finished pieces.