ELAN shank buttons provide extra clearance for thicker plackets and knit ribs, helping projects fasten neatly without crushing the fabric. This card includes 2 buttons in 20 mm (about 3/4 in) with a molded back shank that keeps thread tucked away for a tidy front appearance and gives space for layered buttonholes. Use strong button thread, reinforce the attachment area on heavier garments, and test placement before wearing or cleaning, and keep spares together in your sewing kit.