100% new, good quality ,MG90S micro servo motor, updated SG90 serve motor. MG90S micro servo gear with less noise,the gears help with the movement, these will rotate the proper direction. Stall Torque: 2.0kg/cm(4.8V); Operating Speed: 0.11 seconds / 60 degrees (4.8V).The servo Maximum angle is 360. The great gear micro motor servos for helicopter/boat/car/remote controlled aircraft DIY. Fit for electronics DIY compatible with Arduino, Raspberry Pi. The model is suitable for ordinary small electric aircraft models and is not recommended in large fixed wing and electric helicopter. Maximum Angle :360 degrees
Operating Voltage : 4.8V
Operating Speed : 0.11 seconds / 60 degrees
Temperature Range : 0 ℃ -- 55 ℃
The dead-band setting : 5 microseconds
Line Length : 300MM
Plug Type : JR, FUTABA general

The factory setting of the valve is 90 degrees, the pulse signal value is 1500, 500-2500 signal range, and then rotate from 90 degrees, if you need to adjust according to the signal range of its pulse setting

Servo working principle: the signal is aborted, the servo stops, and then the signal is output to the servo again at zero degree, and then start the second round of 360 degrees

Package includes:
12 x MG90S 360 degrees micro servo
12 x Servo arms and screws set