Tungsten is not always the ideal choice to sink your artificial flies because in certain situations even the lightest tungsten beads you have could be too heavy. To avoid making the movement of your imitation unnatural, brass or glass beads could be the winning solution. Heads and bodies are very heavy, they are used to tie streamers and will sink your baits very quickly. Many of the heads here have an optional adhesive eyelet housing that will make your imitations even truer.