The Dr.fish Plain Shank Hooks are made with high carbon steel with a bronze coating, durable and corrosion resistant, special barbed designed to ensure that the hook point rolls in the corner of the fish's mouth and lowers fish mortality, plain shank can be removed relatively easily from the fish, great for catch and release. Great for Bass, Redfish, Trout, Walleye ect in the river, lake and sea, suitable for saltwater and freshwater.