7691DT hooks are available in 4/0 - 12/0 sizes,Mustad Hooks cover a broad range of fishing uses and are backed by quality manufacturing. To increase the strength of their hooks, Mustad uses a unique three-stage computer-controlled tempering process, which transforms the hook into a fine-grained, ultra-strong microstructure. Mustad goes to great lengths in designing and developing hook patterns to suit a variety of fishing situations. Choose the Mustad Hook that best fits your fishing needs, and fish with confidence. Features of the Mustad Tuna Hook – Model 7691DT include foreged, knife edge long point, and a tapered, brazed ring eye.