ELAN button card sized 13 mm (1/2inch) with 2 buttons per pack delivers a reliable, easy-to-sew closure for everyday repairs and new makes. A smooth shank back protects thread and gives clearance over thicker fabrics and plackets, helping the button sit neatly without pulling. Ideal for shirts, cardigans, skirts, light jackets, uniforms, kidswear, bags and craft projects. Match the diameter to existing buttonholes and test stitch length and tension on a scrap for best results.