ELAN 2-hole sew-through buttons are made for garment repairs, replacements, and new sewing projects in home sewing rooms or tailoring workrooms. This card includes 4 buttons measuring 11 mm (3/8 in) in diameter, sized for shirts, blouses, dresses, and light outerwear. Position to match the buttonholes before stitching and knot securely; check the finish on the card so it coordinates with your fabric and thread.