EasyTroller Trolling Plate16.1 Standard Model - Fits 50HP to 300HP motorsSay goodbye to bent or damaged trolling plates. The EasyTroller trolling plate's patented spring hinge design flexes upward to prevent damage to the trolling plate under accidental acceleration. The optional hydrofoil trolling plate model combines two products into one to improve fuel economy and performance.FeaturesSlows boats to ideal trolling speed, even as slow as 1 mph Patented hinged plate design flexes upward to prevent damage or shear pin breakageMounts directly to the cavitation plate of your outboard or outdrive, a few inches behind the propellerOptional hydrofoil fins to improve performance and reduce porpoisingMade from marine-grade anodized aluminum and stainless steelOne year warrantyMade in the USA