Perfect trolling speed doesnt necessarily mean the addition of an expensive trolling motor. Make this fixed-position trolling plate a simple but extremely effective part of your fishing strategy. In the up position, the plate acts as a stabilizer, smoothing out the ride in rough water and reducing porpoising and cavitation. In the down position, it serves as a brake so you can maintain the ideal trolling speed. Constructed of the highest quality stainless steel and marine aluminum with a clear, anodized aluminum finish. Models: Small - Fits outboard motors through 50 hp Large - Fits I/Os plus all outboards 50 hp and larger Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fixed Position Trolling Plate.