Now we offer Tungsten beads with classic holes in bags of 25 beads. That will help you to match these beads with your ready packed hooks. If you do not know, tungsten is non-toxic and eco friendly sinker that you can find. Also is almost two times heavier than lead. Tying a nymph with tungsten will let you know to keep them close to river bottom.
Tungsten details:
Tungsten weight per diameter of bead: