This ELAN four-hole sew-on button suits garment sewing, mending, and craft projects that need a flat, stable closure on everyday fabrics. The card includes 2 button(s) sized 23 mm (7/8 in), using a four-hole layout that supports balanced stitching for shirts, outerwear, and accessories. Match the diameter to existing buttonholes, secure the thread tails firmly, and test placement on a scrap so the closure sits neat and wears well.