This revolutionary trolling device allows you to operate your motor at a wide range of speeds from very slow to wide-open. Plus, it's completely automatic and swings up as speed is increased, so there is absolutely no interference. Constructed of fiberglass-filled nylon, it will not rust or corrode. Works on most outboards or inboard out-drives from 50 hp on up. Mounts in just minutes. Not for use with Volvo out-drives. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Trolling Plate.