Description: High Efficiency Power: Specifically designed for electric motors, these Electric Boat Propellers deliver power output, enhancing your boat's speed and efficiency on the waterDesign: These propellers reduce water resistance and improve propulsion efficiency, ensuring smoother navigationEasy Installation: Enjoy easy installation with no special tools required. Enhance your boating experience with our reliable and efficient electric trolling motor outboard propellersMaterial: Made from plastic, these Ship Outboard Propellers are built to withstand the demands of marine environments while maintaining performance over timePackage Includes: Each purchase includes two propellers with an inner hole diameter of 1 cm/0.39 inch, providing a convenient solution for replacing worn or damaged parts on your electric trolling motor outboard Size Chart: Inner Hole Diameter: 1 cm/0.39 inch Package Includes: 2 Electric Boat Propellers Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.