Putting tungsten beads like the Hanak Body+ on your nymphs is absolutely essential for fishing in deep pools and fast streams. Tungsten has a specific weight of 18 kg/dm3, which is nearly twice more than the lead. Therefore your flies can be slimmer and tinier, and more attractive for fish, and will stay in the fishing zone longer. Package contains 10 beads
These beads are made to fit onto the shank of your hook, and then tied in. You can leave the front of the bead exposed for a great stonefly head imitation.