If you're chasing fish with big teeth the RIO Saltwater Toothy Critter fly fishing leader will help you land them. These 7.5' leaders have wire bite tippets. there are 2 types. The bronze leaders have a thin wire that you can tie knots in and the silver are stainless steel wire with a stainless steel snap make changing flies easy. These wire fly fishing leaders will put more of those fun but nasty fish in the boat.