Put a tungsten beadhead on the popular, all-purpose Prince Nymph, and you have a killer combination. Tungsten is heavier than brass, so the fly sinks deeper and faster without adding as much cast-impairing lead. This put the flies in front of fish for a longer drift. The Prince Nymph is particularly effective on rivers with hatches of black caddis. Per 12. Sizes: 12, 14, 16.