Ironwood Pacific EasyTroller Trolling Plate | Metal Plate is Hinged to Prevent Plate Damage During Accidental Acceleration | Standard and Short Models Slows boats to ideal trolling speeds; as low as 1mph Hinged plate flexes upward to prevent damage during accidental acceleration Standard model Fits I/Os and outboards 50-300 horsepower; short model fits outboards 30-45 horsepower Mounts directly to the engine cavitation plate Made in the USA; constructed from marine-grade anodized aluminum and stainless steel