MUUNN Slotted faceted beads are made of 97% tungsten, bead head will sink fast. Tungsten is much denser and harder than brass beads. Faceted slotted tungsten beads assortment for fly tying. Tungsten beads have 2.0mm 2.5mm 2.8mm 3.0mm 3.3mm 3.5mm 3.8mm 4.0mm, a total of 8 sizes; Gold(24K real gold coating), Silver, Copper, Black Nickle,50pcs per color, a total of 200pcs.No fading, Anti-corrosion. Tungsten faceted slotted beads in our "MUUNN FISHING" store will be guaranteed to be well-formed and consistent in color and quality when the package is dispatched.