Gamakatsu's Big River Bait Hook features a unique shape and large gap are designed to optimize hook penetration and hold fish more securely once hooked. The Gamakatsu Big River Bait Hook is forged for unparalleled strength with a turned-up eye for easy and effective snelling. The NS black finish is durable and corrosion resistant. The methods used in creating Gamakatsu hooks is what makes it so superior to all other Brands. First, only the most premium grade of high carbon steel is used. This insures against any blemishes in the metal which can weaken the hook. Secondly, Gamakatsu has the most advanced tempering system in the world. Every hook is heated to the exact temperature that is perfect for that particular style and size then cooled in oil. This process produces hooks which are super strong, but not brittle. It is extremely difficult to achieve a balance between strength and flexibility, and it took many years for Gamakatsu to perfect this process. Finally, and perhaps most importantly, our sharpening process is the most modern in the world, and results in a perfectly conical point that is unequalled in sharpness.