These ELAN 4-hole sew-through buttons are carded replacements for repairs, alterations, and finishing garments and accessories. Each card includes 5 button(s) sized 9 mm (3/8 in) for shirts, uniforms, sweaters, and closures on cuffs, plackets, or waistbands. Use cross or parallel stitches and secure the thread tails, then follow the garment care label to help the button stay aligned after wear and washing.