The Hanak RS+ tungsten bead directly correlates diameter and weight, and is available in black nickel. Black nickel is ideal for dark nymphs and rigs where you want to maintain a low-glare metal head. The tapered slot makes it easy to mount on jig hooks and helps concentrate up to 10% more weight around the hook. Sizes range from 2.30 to 4.60 mm and from 0.09 to 0.80 g; Packaging: 20 or 10 pieces per bag, depending on the diameter. First, choose the diameter-weight combination based on the hook and the drift, then select the color.