The Hanak Diamond+ tungsten bead directly correlates diameter and weight, and comes in gold. Gold remains the classic choice for traditional nymphs and brown, tawny, or olive-colored bodies. Sizes range from 2.50 to 4.00 mm and from 0.10 to 0.40 g; packaging: 20 pieces per bag. First, choose the weight required for the depth and current speed, then make sure the diameter fits the hook you’ve selected.