This listing is for a set of 6 round periwinkle blue Czech glass shank buttons. The buttons are 18 mm in diameter. The buttons are shaped like pointed domes with fluted edges. The color is not uniform but a combination of darker and lighter stripes or streaks. I acquired these buttons about 15 years ago when I discovered Ebay auctions. It seemed like a good idea at the time but now I realize that I will never use these buttons and I am trying to find them a new home.