These ELAN shank buttons in 12 mm (1/2") come carded in a 4-piece pack. The integrated shank protects thread and adds clearance so thick layers and knits drape smoothly. They are a practical choice for coats, jackets, heavy cardigans and bag flaps, and they double as decorative accents on structured fabrics. Attach through the shank loop and consider a small backing button to distribute stress on bulky layers. Colours and finishes vary by card to coordinate with different projects.