Built with high-purity tungsten, Acme Professional Grade Tungsten Jigs sink faster, allowing you to fish with a smaller presentation. Acme Tungsten Jigs provide greater sensitivity than lead jigs and are environmentally safe. Featuring Acme's HD2 finish, Acme Pro Grade Tungsten Jigs (2-pack) will retain their color and luster in harsh winter conditions. Armed with super-sharp steel hooks, once a fish bites, these hooks won't let go! Get down into the strike zone fast and use what the professionals like, Acme Professional Grade Tungsten Jigs!