Offset Deep Dive tungsten bead 2.8 mm 10pcs gold TFH®
Product SFF22027. Offset Deep Dive tungsten bead 2.8 mm 10pcs gold TFH®. A drop shaped ball has a hole at the top of the droplet. The ball is tied to the fly frame so that the weight remains below the hook when the hook bend is up.
Such ODD tungsten balls are popular among others. jig-style flyers. The Tungsten or Wolfram material is more than 2x heavier than lead and such ODD balls are still about 23 to 30% heavier than the tungsten balls because they do not have a needle but a mere hole whereby the material is left to spin itself.
This design allows the fly to be tied so that the hook section can be moved upwards. You get the butterfly deep and the hook does not stick so easily to the bottom.