This is the original racerstar quality motors 
 
Racerstar BR2212 1000KV 2-4S Brushless Motor For RC  planes quadcopter
 
Description:
Brand Name: Racerstar
Item Name: BR2212 brushless motor
KV: 1000
Operating Voltage: 2-4S
Weight: 52g
Recommended Prop: 1047
 
Testing Data:
voltage    Prop     Amp        Thrust
11.1     1047      15.6       885g
 
Package Included:
4x Racerstar BR2212 1000KV brushless motor
4x Accessories
             package include    4 motors