The ePropeller Blade Power set includes two propeller blades made from aluminum, engineered to deliver maximum torque for optimal performance. With their innovative corrugated gears, these blades ensure reliable unfolding when you engage the motor, whether it’s in or out of the water.Important Safety Note: These propeller blades are sharper and more dangerous than plastic propeller blades. We recommend using them only if you have an advanced foiling skill level.All Foil Assist masts come pre-assembled with plastic propeller blades.For proper installation and replacement, please refer to the help center or watch our instructional video.