Rotor Blades 2 White blades for the front and 2 red blades for the rear.
Your new QUATTRO has 2 pairs of unique blades. One pair is “A” and one pair is “B”. You can easily tell by closely looking at the top of the rotor blade, there will be a stamp indicating “A” or “B”.
All “A” blades spin in a clockwise direction while all “B” blades spin in a counter clockwise direction.