The slotted tungsten beads allow the nymphs to sink more easily to reach the depth where the fish are feeding. If they are initially slotted for Jig hooks, they can also be used for all nymphs including Perdigon Nymphs. Some tyers only use slotted Tungsten beads to simplify the management of their bead stock. Our premium quality Hanak and Ellipse beads give your flies an extra edge to help you achieve great results with Euro Nymphs, Spanish Nymphs, French Nymphs, Sight Nymphs, Thread Nymphs, Dry Nymphs or simply with your usual way of casting.