RIO's Bug Nugget is a biot tailed euro nymph that will cover most all mayfly nymphs that roam the riverbeds. Tied on a barbless jig hook and featuring unique tungsten beads. The dark wing pad with a little bit of flash are all trigger points. The thin legs give realism and allow for quick sinking.
The following are the bead sizes per hook:
Size 12 - 3.8 mm
Size 14 - 3.3 mm
Size 16 - 2.8 mm
Size 18 - 2.3 mm
