【Package content】Can choose 1 set/2 sets of propellers for purchase, respectively 8 pieces (4*2)/16 pieces (8*2). As shown in the picture, the propeller blades are installed in sets of two with the same letter. Can meet your drone replacement needs.

【Applicable Drone】This propeller is suitable for Fakjank F407/F406/Karuisrc K407/X-imvnlei X17 obstacle avoidance head Drone.

【Note】There are positive and negative propellers. One blade is A and the other is B. They are both equipped with screws. The numbers after the letters are only used to distinguish the factory batch. Please pay attention to distinguish A/B propellers when assembling.