MUUNN Tungsten Slotted Beads Assorment, 12 Colors Fly Tying Nymph Head Tungsten Beads Assorted with Tackle Box. MUUNN Slotted beads are made of 97% tungsten, bead head will sink fast. Tungsten is much denser and harder than brass beads. Slotted tungsten beads for fly tying. Slotted tungsten beads assorted have 2.5mm 2.8mm 3.0mm 3.3mm 3.5mm 3.8mm, a total of 6 sizes can choose; Gold(24K real gold coating), Silver, Copper, Black Nickle, Plain, Fluo Yellow, Fluo Orange, Rainbow, Metallic Pink, Mottled Yellow, Mottled Brown, Mottled Gray, a total of 12 colors in a fishing tackle box. No fading, Anti-corrosion. Tungsten 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.