These 4mm grey-blue beads have a partial iridescent finish that brightens their appearance and adds a play of color to their surfaces. Try these transparent glass beads between sparkling Swarovski crystal beads or colorful gemstones. They come in a pack of 100. Czech glass druks are round pressed-glass beads made in the Czech Republic. These beads are still made in small quantities by hand. Be sure to explore the rest of our Czech glass druk beads for other colors and sizes.