Slotted tungsten beads are the ultimate fly tying beads when looking for the heaviest weight to size ratio. Since less material is removed from the bead to accommodate hooks, as well as tungsten being one of the densest metals for fly tying beads, these things will sink quicker than anything else out there! Tungsten is also a better alternative for the environment compared to toxic materials such as lead. Great for tying nymph patterns, bead head streamers, and anything else that you need to sink fast. Available in 8 sizes and 9 fish-attracting colors (listed below). 20 beads per pack.