Double Prong Stainless Steel Knife edge hooks - double pronged - barbed - Stainless Steel hooks. I am sure these can be used for many applications in both fresh water and saltwater environments and is limited only to the anglers imagination . These hooks will work really well on jet heads tuna feathers tuna clones and rapala style lures as well. I deal for albacore and yellowfin tuna trolling feathers and skirted lures when trolling offshore.