The Fishermen's Choice Deep Diving Stainless Steel Trolling Planer. The P-3 is a downrigger designed for saltwater fishing that gets your bait or lure down deep. 2nd item as pictured in trio. It is made of stainless steel and is corrosion resistant with a brass ring.. The lead weight is approx. 6oz and the recommended tackle is 30-50 lbs. It is approximately 6 3/4 inches long and suitable for catching all saltwater fish species. Other sizes are available in our eBay store.