Hobbypower 1045 Self Locking Propeller CW CCW Props for F450 F550 Quadcopter(Pack of 4 Pairs) 4 pairs 1045 Self-locking Propeller ( 4pcs CW + 4pcs CCW) Suit for all DJI 2212 920KV / 2312 960KV motor, EMAX MT2213 935KV motor, MARSPOWER MX2212 920KV motor...etc