The Pheasant Tail nymph trout fly is one of the best all-time trout nymph patterns, and the 2 beads make it even better Heavily beaded for getting deep in the water column quickly Excellent trout, bass, salmon. panfish or steelhead flies. Pack of 12 - 2 bead Nymph Flies - Hook Size 14 Essential on freestone rivers where insect nymphs and larvae are an important trout food.