Sound heightens curiosity in fish and triggers investigation. These lures actually have sound frequencies that are harmonic, uniform and "in tune" with nature. This secret of sound combined with the legendary Rapala "wobble" is what make this lure so effective. Long-casting, lipless design makes this lure viable anywhere you can fish. Rip it fast or run it slow, either way it sounds like the dinner bell to fish. Features premium VMC black nickel hooks. Each lure is hand-tuned and tank-tested for ultimate performance right out of the box.