These propellers are designed to provide and efficiency for your RC boat. The two- configuration reduces drag and increases speed, while the semi-submerged design ensures better control and stability. Made from robust PC material, they are built to withstand the rigors of regular use and deliver consistent performance. Features -Color:Black -Material:PC -Size:3.00X3.00X1.30cm/1.18X1.18X0.51in -Electric boat optimization: designed for electric boats, this 2 semisubmerged propeller enhances efficiency and performance. -Cnc technology: crafted with cnc technology, ensuring precise and balanced propeller . -Innovative design: the unique design adds a creative flair to your model boat. -Reversible functionality: offers both forward and reverse propeller options for flexible use. -Speedoptimized design: the twoblade design minimizes water resistance, promoting faster navigation Package list: 3 x ship model propeller 3 x reverse ship model propeller