Flat, sew‑through 4‑hole buttons in 15 mm (⅝ in) provide a classic, durable closure for everyday garments and accessories. Four holes allow secure cross or parallel stitching that spreads stress on shirts, cardigans and craft projects. Card includes 3 buttons. Attach by hand or with a button‑sewing machine foot. For thicker fabrics, leave a small thread shank so the button sits above the cloth and closes smoothly without strain.