These hooks are designed for big saltwater fish. The Tuna Hook is designed with stainless steel and has a sharp knife-edge point for superior penetration. Each is forged with a ringed eye. Per 10. Sizes: 6/0, 7/0, 8/0, 9/0, 10/0. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Hooks.