Aside from the 90 degree hooks which seem to match up to the EC 570 you can tell by the number. The 10786 is equivalent to the Mustad 32786. The 10798 is equivalent to the Mustad 32798. If the number starts with a 10 it is a round bend, if it begins with 11 it is a V-Loc or sickle style. All you need to do is go to their website or Barlow's Tackle, Barlow's has the hooks categorized into 90 degree fine and heavy, 60 degree, 30 degree, and flat eye which makes it easy to find what you need.