ELAN shank buttons in 18 mm (3/4") size, supplied as a 2-piece card. The shank back lifts the button above the fabric so layers sit smoothly and the thread is protected. It is a sensible choice for coats, jackets, chunky knits and bag flaps. Sew through the shank loop and reinforce on heavy fabrics with a backing button. Colours and face designs vary by style; select a card that complements the fabric and existing buttonholes.