Boone Bait Stainless Steel Trolling Planer - Great for deep trolling without using heavy sinkers, the Boone Planer features a release mechanism that trips when the hook is set to allow the angler to land the fish. Made of all-welded, stainless steel for durability. Release mechanism trips when the hook is set to allow the angler to land the fish For deep trolling without heavy sinkers All-welded, stainless-steel construction for durability