Multistar Quadcopter Blade 350QX Motor Set 4pcs 2209-1200KV Multirotor 1200KV KV(RPM/V): 1200, 3S lipo Max Amps: 20A Number of Poles: 12P14S (12poles 14 stators) Motor Shaft: 3.17mm 4 x 2209 1200Kv MultiStar motor