The Nautilus HD is slightly more stout than the regular Nautilus but not quite as beefy as the Super Nautilus. It fits perfectly in-between and should certainly be in your tackle box for every offshore trip. The wire diameter is perfect for tuna, and tested tough by our prostaff and local SoCal experts.Gamakatsu Nautilus HD NS 377413-25 Sz 3/0 Black Qty 25