are best used as a thorax on nymphs where you don't want a bead on the front of a dressed fly. They add alot of weight while still keeping a nice slim profile.
Perfect for Pheasant tail nymphs or even hidden under dubbing and body materials for other types of flies.
Why slotted beads instead of cyclops beads?
beads have been specially designed for clearing the bend on narrow gap hooks. Also, slotted hooks are easier to clear a barb if you're not using barbless hooks.
The weight per beads is heavier than tapered hole regular tungsten beads