Duble 20 mm No-Sew Celtic Knot Jean Tack Buttons CT. 6 (Brass) Please Click on 'by JBDIYME' link at the top of the page to view more buttons. This package contains 6 buttons. All you need is a hammer for quick and easy button installation. How-to install instructions included. Ship from MA 01760 Dimecrafts&reg; is a registered trademark.