Snapswivel is where the hook or lure goes, just tie the line to the barrel swivel. If its just leader material youll have to make your own. I like to use longer steel leaders (18-24) when i fish for pike or skis so they dont have that chance of getting above it. I 've never used floro, dont see the need for it and i wouldn't chance it. Pike and muskie are curious by nature and will often strike multiple times.