These slotted tungsten beads are ideal on both the Umpqua Competition Series C400 Jig Hook and the Tiemco Jig Hooks. The slot on these beads allows them to pass easily over tight hook gaps while increasing the amount of weight per bead. Considering the increased use of small jig hooks for competition fishing, and the resulting growing interest in tying flies on these hooks, slotted tungsten is almost mandatory as the bead of choice.