These ELAN 2 hole buttons are designed for everyday garment construction, repairs, and accessory finishing. The retail card includes 3 buttons in 18mm (3/4 in) diameter, sized for shirts, dresses, knitwear, and small bags. Sew them on as needed and store the remaining buttons with your tools so you have spares ready for future mending, Keep the card with your other fasteners for quick reference., This helps maintain a consistent look across a garment..