These hand made beads are made individually from lampwork glass. Then a metallic coating is added, creating a look of melted precious metals in a variety of styles. Since each one is unique, you should expect some variation in size and color. Due to the manufacturing process, some beads will not have complete coatings around the area of the holes. Note: These beads have not been tested for lead and should not be used in products intended to be used by children.