The buttons are approximately 2.5cm. They are all clear stones set in silver metal. GORGEOUS! They are perfect for using on garments or beautiful used in jewelry - either with or without the shank. Incorporate them into a collage with other buttons and jewelry parts. They are great for inclusion into crazy patchwork and vintage embroidery.These are beautiful high end buttons. “MADE IN CZECHOSLOVAKIA” they are from a store going out of business so they won’t last forever. When they are gone, there won’t be any more.