These genuine Yuneec propellers are made for the Typhoon G, Typhoon Q5004K, and Typhoon Q500+ drones. These propellers are made of a durable, hard plastic. This set comes with two counter clockwise (B) black propellers. Whether you need spares or replacements, Terrestrial Imaging has them. Be careful when propellers are spinning on your drone. These propellers are especially dangerous because of their size.