9KM treble hooks are made of high quality carbon steel with black nickel plated coating on the surface, which has high strength and good corrosion resistance. Suitable for saltwater freshwater sea river and lakes. [Exquisite Workmanship] The sharp barbs and 3 curved hooks are designed to quickly pierce the fish while preventing them from escaping. [Perfect replacement hooks] These 3 hooks provide excellent bite coverage for fishing artificial hard lures.Examples include crankbaits, spinners, topwater and homemade lures.