Classic 2-hole flat buttons sized 10 mm (3/8 in.) for shirts, children’s wear and handmade garments. The sew-through design attaches quickly by hand or machine while keeping a neat, low-profile look on plackets and cuffs. This card includes 4 matching buttons so spacing and scale stay consistent across a project. Use them for replacements, repairs or new sewing and choose thread that suits the fabric weight.