Special tungsten beads with a hole adapted to be put on a hook with an eye. When used in combination with fly fishing materials, these beads can easily be used to prepare a variety of lures imitating larvae, nymphs and pupae. They can also be used to make micro jig heads for use with the smallest soft lures. Perfect for use with dedicated Kamatsu hooks: Jig Game Light nr K-130 or Worm Jig Ul nr K-140.