Each blade has undergone a precise dynamic balance test, resulting in less flight noise, higher aerodynamic efficiency, lower power consumption and improved endurance. We strongly recommend using genuine blades and replacing the blades as soon as they show any cracking at all. The propellers on your drone are akin to the tires on your car.
Quieter and longer flight.
Please install the blade strictly according to the instruction.
Model number is: 7238 Low-Noise Propeller.
Diameter x Thread Pitch: 18.3 x 9.7 cm.
Weight: 4.8 grams each.