The Propeller 6045(6X4.5) Quad-Rotor Multi Rotor are high-quality propellers specially designed for multi-copters. These Propellers are very light in weight and of high strength. The propeller has a 15° angle design at the end of the propeller to avoid whirlpool while the multi-copter is flying. They are useful in drones as well as in multi-copters. Has high endurance and flexibility for great impact.