FFGene Soft Tungsten

Very heavy tungsten "rubber" which you can cut with scissors in any way you want to obtain the correct shape. This material is suitable as a burden unseen material body, it may also be a part of the structure visible on the fly, like: body fly or a sheath. It is a perfect material for making all kinds of nymph sheaths, especially when you want your fly to go quickly down the water. Tungsten is much heavier than lead, so the flies burden with tungsten will sink faster. Three popular colors will allow you to create many different designs.