Ironwood Pacific EasyTroller Hinged Metal Trolling Plate with Fins For motors 30HP - 300HP Slow your boat to the ideal trolling speed. Hinged plate flexes upward to prevent damage to the plate. Includes hydrofoil fins for improved handling Heavy duty anodized aluminum with stainless steel fittings. EasyTroller Standard Model fits outboard and stern drive motors 50-300 horsepower EasyTroller Short Model fits outboard motors 30-45 horsepower Can be mounted on top or underneath the cavitation plate Position the EasyTroller 4-7 inches from the prop, then clamp in place Drill 5/16&#034; holes through the cavitation plate and mount with included hardware EasyTroller should always be in the up position when running at speed EasyTroller should be set in the down position when transporting your boat on a trailer