MD0753AA 7.5 Inch Main Rotor • Suitable for M470 / M480L / M690L. • Suitable for ALIGN Multicopter Main Rotor Cover(M480017AX / M480017AA / M480017AR / M480017AE). • The highly rigid industrial grade fiber composite plastic main rotors are quiet and aerodynamically efficient. Multiple colors are available for enthusiasts to customize their look. Specification: • 7.5 Inch Main Rotor(clockwise) x 2 • 7.5 Inch Main Rotor(counter clockwise) x 2 • Collar x 4(Ø4xØ5.8x4)